2021 |
Lange-Hegermann, M; Robertz, D; Seiler, W M; Seiß, M Singularities of Algebraic Differential Equations Journal Article Advances in Applied Mathematics, 131 , pp. Paper No. 102266, 2021. @article{LangeHegermannRobertzSeilerSeiss, title = {Singularities of Algebraic Differential Equations}, author = {Lange-Hegermann, M. and Robertz, D. and Seiler, W. M. and Seiß, M.}, year = {2021}, date = {2021-08-26}, journal = {Advances in Applied Mathematics}, volume = {131}, pages = {Paper No. 102266}, abstract = {There exists a well established differential topological theory of singularities of ordinary differential equations. It has mainly studied scalar equations of low order. We propose an extension of the key concepts to arbitrary systems of ordinary or partial differential equations. Furthermore, we show how a combination of this geometric theory with (differential) algebraic tools allows us to make parts of the theory algorithmic. Our three main results are firstly a proof that even in the case of partial differential equations regular points are generic. Secondly, we present an algorithm for the effective detection of all singularities at a given order or, more precisely, for the determination of a regularity decomposition. Finally, we give a rigorous definition of a regular differential equation, a notoriously difficult notion, ubiquitous in the geometric theory of differential equations, and show that our algorithm extracts from each prime component a regular differential equation. Our main tools are on the one hand the algebraic resp.\ differential Thomas decomposition and on the other hand the Vessiot theory of differential equations.}, keywords = {}, pubstate = {published}, tppubtype = {article} } There exists a well established differential topological theory of singularities of ordinary differential equations. It has mainly studied scalar equations of low order. We propose an extension of the key concepts to arbitrary systems of ordinary or partial differential equations. Furthermore, we show how a combination of this geometric theory with (differential) algebraic tools allows us to make parts of the theory algorithmic. Our three main results are firstly a proof that even in the case of partial differential equations regular points are generic. Secondly, we present an algorithm for the effective detection of all singularities at a given order or, more precisely, for the determination of a regularity decomposition. Finally, we give a rigorous definition of a regular differential equation, a notoriously difficult notion, ubiquitous in the geometric theory of differential equations, and show that our algorithm extracts from each prime component a regular differential equation. Our main tools are on the one hand the algebraic resp. differential Thomas decomposition and on the other hand the Vessiot theory of differential equations. |
Chudoba, R; Niemeyer, A; Spartali, H; Robertz, D; Plesken, W Description of the origami waterbomb cell kinematics as a basis for the design of thin-walled oricrete shells Inproceedings Behnejad, S A; Parke, G A R; Samavati, O A (Ed.): IASS2020/21-SURREY7: Annual Symposium of the International Association for Shell and Spatial Structures (IASS2020/21) and the 7th Surrey International Conference on Spatial Structure, 2021. @inproceedings{ChudobaNiemeyerSpartaliRobertzPlesken1, title = {Description of the origami waterbomb cell kinematics as a basis for the design of thin-walled oricrete shells}, author = {Chudoba, R. and Niemeyer, A. and Spartali, H. and Robertz, D. and Plesken, W.}, editor = {Behnejad, S. A. and Parke, G. A. R. and Samavati, O. A.}, year = {2021}, date = {2021-08-23}, booktitle = {IASS2020/21-SURREY7: Annual Symposium of the International Association for Shell and Spatial Structures (IASS2020/21) and the 7th Surrey International Conference on Spatial Structure}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Hashemi, A; Izgin, T; Robertz, D; Seiler, W M An Involutive GVW Algorithm and the Computation of Pommaret Bases Journal Article Mathematics in Computer Science, 15 (3), pp. 419-452, 2021. @article{HashemiIzginRobertzSeiler2, title = {An Involutive GVW Algorithm and the Computation of Pommaret Bases}, author = {Hashemi, A. and Izgin, T. and Robertz, D. and Seiler, W. M.}, year = {2021}, date = {2021-06-07}, journal = {Mathematics in Computer Science}, volume = {15}, number = {3}, pages = {419-452}, abstract = {The GVW algorithm computes simultaneously Gröbner bases of a given ideal and of the syzygy module of the given generating set. In this work, we discuss an extension of it to involutive bases. Pommaret bases play here a special role in several respects. We distinguish between a fully involutive GVW algorithm which determines involutive bases for both the given ideal and the syzygy module and a semi-involutive version which computes for the syzygy module only an ordinary Gröbner basis. A prototype implementation of the developed algorithms in Maple is described.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The GVW algorithm computes simultaneously Gröbner bases of a given ideal and of the syzygy module of the given generating set. In this work, we discuss an extension of it to involutive bases. Pommaret bases play here a special role in several respects. We distinguish between a fully involutive GVW algorithm which determines involutive bases for both the given ideal and the syzygy module and a semi-involutive version which computes for the syzygy module only an ordinary Gröbner basis. A prototype implementation of the developed algorithms in Maple is described. |
2020 |
Walter, Matthew J; Walker, David J; Craven, Matthew J Visualising Evolution History in Multi- and Many-Objective Optimisation Conference Forthcoming Proceedings of Parallel Problem Solving from Nature, Lecture Notes in Computer Science Springer, Forthcoming. @conference{walterwalkercraven2020, title = {Visualising Evolution History in Multi- and Many-Objective Optimisation}, author = {Matthew J. Walter and David J. Walker and Matthew J. Craven}, year = {2020}, date = {2020-09-01}, booktitle = {Proceedings of Parallel Problem Solving from Nature}, publisher = {Springer}, series = {Lecture Notes in Computer Science}, keywords = {}, pubstate = {forthcoming}, tppubtype = {conference} } |
Dyke, Phil; Searl, John; Craven, Matthew J; Wei, Yinghui Modern Engineering Mathematics Book Pearson, 2020. @book{dykeetal2020, title = {Modern Engineering Mathematics}, author = {Phil Dyke and John Searl and Matthew J. Craven and Yinghui Wei}, year = {2020}, date = {2020-02-21}, publisher = {Pearson}, keywords = {}, pubstate = {published}, tppubtype = {book} } |
Graham, David I; Craven, Matthew J An Exact Algorithm for Small-Cardinality Constrained Portfolio Optimisation Journal Article Journal of the Operational Research Society, 2020. @article{digmjc2, title = {An Exact Algorithm for Small-Cardinality Constrained Portfolio Optimisation}, author = {David I. Graham and Matthew J. Craven}, doi = {10.1080/01605682.2020.1718019}, year = {2020}, date = {2020-02-13}, journal = {Journal of the Operational Research Society}, abstract = {Real-world portfolio optimisation problems are often NP-hard, their efficient frontiers (EFs) in practice being calculated by randomised algorithms. In this work, a deterministic method of decomposition of EFs into a short sequence of sub-EFs is presented. These sub-EFs may be calculated by a quadratic programming algorithm, the collection of such sub-EFs then being subjected to a sifting process to produce the full EF. Full EFs of portfolio optimisation problems with small cardinality constraints are computed to a high resolution, providing a fast and practical alternative to randomised algorithms. The method may also be used with other practical classes of portfolio problems, complete with differing measures of risk. Finally, it is shown that the identified sub-EFs correspond closely to local optima of the objective function of a case study evolutionary algorithm.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Real-world portfolio optimisation problems are often NP-hard, their efficient frontiers (EFs) in practice being calculated by randomised algorithms. In this work, a deterministic method of decomposition of EFs into a short sequence of sub-EFs is presented. These sub-EFs may be calculated by a quadratic programming algorithm, the collection of such sub-EFs then being subjected to a sifting process to produce the full EF. Full EFs of portfolio optimisation problems with small cardinality constraints are computed to a high resolution, providing a fast and practical alternative to randomised algorithms. The method may also be used with other practical classes of portfolio problems, complete with differing measures of risk. Finally, it is shown that the identified sub-EFs correspond closely to local optima of the objective function of a case study evolutionary algorithm. |
Brakhage, K H; Niemeyer, A C; Plesken, W; Robertz, D; Strzelczyk, A The icosahedra of edge length 1 Journal Article Journal of Algebra, 545 , pp. 4–26, 2020. @article{BrakhageNiemeyerPleskenRobertzStrzelczyk, title = {The icosahedra of edge length 1}, author = {Brakhage, K. H. and Niemeyer, A. C. and Plesken, W. and Robertz, D. and Strzelczyk, A.}, doi = {doi:10.1016/j.jalgebra.2019.04.028}, year = {2020}, date = {2020-01-01}, journal = {Journal of Algebra}, volume = {545}, pages = {4--26}, abstract = {Retaining the combinatorial Euclidean structure of a regular icosahedron, namely the 20 equiangular (planar) triangles, the 30 edges of length 1, and the 12 different vertices together with the incidence structure, we investigate variations of the regular icosahedron admitting self-intersections of faces. We determine all rigid equivalence classes of these icosahedra with non-trivial automorphism group and find one curve of flexible icosahedra. Visualisations and explicit data for this paper are available under http://algebra.data.rwth-aachen. de/Icosahedra/visualplusdata.html.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Retaining the combinatorial Euclidean structure of a regular icosahedron, namely the 20 equiangular (planar) triangles, the 30 edges of length 1, and the 12 different vertices together with the incidence structure, we investigate variations of the regular icosahedron admitting self-intersections of faces. We determine all rigid equivalence classes of these icosahedra with non-trivial automorphism group and find one curve of flexible icosahedra. Visualisations and explicit data for this paper are available under http://algebra.data.rwth-aachen. de/Icosahedra/visualplusdata.html. |
Francis, A; Fritzsch, P; Lüscher, M; Rago, A Master-field simulations of O(a)-improved lattice QCD: Algorithms, stability and exactness Journal Article Computer Physics Communications, 255 , 2020. @article{Francis2020, title = {Master-field simulations of O(a)-improved lattice QCD: Algorithms, stability and exactness}, author = {A Francis and P Fritzsch and M Lüscher and A Rago}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85085660600&doi=10.1016%2fj.cpc.2020.107355&partnerID=40&md5=4d93213e69a26ad1dda41698cee49896}, doi = {10.1016/j.cpc.2020.107355}, year = {2020}, date = {2020-01-01}, journal = {Computer Physics Communications}, volume = {255}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Stander, M; Stander, J A simple method for correcting for the Will Rogers phenomenon with biometrical applications Journal Article Biometrical Journal, 62 (4), pp. 1080-1089, 2020. @article{Stander20201080, title = {A simple method for correcting for the Will Rogers phenomenon with biometrical applications}, author = {M Stander and J Stander}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078787776&doi=10.1002%2fbimj.201900199&partnerID=40&md5=a212ca3ad49ace7ad8308055daa3808b}, doi = {10.1002/bimj.201900199}, year = {2020}, date = {2020-01-01}, journal = {Biometrical Journal}, volume = {62}, number = {4}, pages = {1080-1089}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ilderton, A; King, B; Tang, S Toward the observation of interference effects in nonlinear Compton scattering Journal Article Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 804 , 2020. @article{Ilderton2020, title = {Toward the observation of interference effects in nonlinear Compton scattering}, author = {A Ilderton and B King and S Tang}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082826912&doi=10.1016%2fj.physletb.2020.135410&partnerID=40&md5=82ebc019d80d3a497502a25618a75356}, doi = {10.1016/j.physletb.2020.135410}, year = {2020}, date = {2020-01-01}, journal = {Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}, volume = {804}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
King, B Uniform locally constant field approximation for photon-seeded pair production Journal Article Physical Review A, 101 (4), 2020. @article{King2020, title = {Uniform locally constant field approximation for photon-seeded pair production}, author = {B King}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85085165691&doi=10.1103%2fPhysRevA.101.042508&partnerID=40&md5=7c07fe97ff384b9a41668812840b6bfa}, doi = {10.1103/PhysRevA.101.042508}, year = {2020}, date = {2020-01-01}, journal = {Physical Review A}, volume = {101}, number = {4}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ilderton, A; MacLeod, A J The analytic structure of amplitudes on backgrounds from gauge invariance and the infra-red Journal Article Journal of High Energy Physics, 2020 (4), 2020. @article{Ilderton2020b, title = {The analytic structure of amplitudes on backgrounds from gauge invariance and the infra-red}, author = {A Ilderton and A J MacLeod}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083438245&doi=10.1007%2fJHEP04%282020%29078&partnerID=40&md5=7b5a32d097538ca6561787026bbe74ac}, doi = {10.1007/JHEP04(2020)078}, year = {2020}, date = {2020-01-01}, journal = {Journal of High Energy Physics}, volume = {2020}, number = {4}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Kelly, J; Moyeed, R; Carroll, C; Luo, S; Li, X Genetic networks in Parkinson's and Alzheimer's disease Journal Article Aging, 12 (6), pp. 5221-5243, 2020. @article{Kelly20205221, title = {Genetic networks in Parkinson's and Alzheimer's disease}, author = {J Kelly and R Moyeed and C Carroll and S Luo and X Li}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083042266&doi=10.18632%2faging.102943&partnerID=40&md5=b1cfda32f2bb96eeb1d663ecd8d5596a}, doi = {10.18632/aging.102943}, year = {2020}, date = {2020-01-01}, journal = {Aging}, volume = {12}, number = {6}, pages = {5221-5243}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Walker, D J; Craven, M J Identifying good algorithm parameters in evolutionary multi- and many-objective optimisation: A visualisation approach Journal Article Applied Soft Computing Journal, 88 , 2020. @article{Walker2020, title = {Identifying good algorithm parameters in evolutionary multi- and many-objective optimisation: A visualisation approach}, author = {D J Walker and M J Craven}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076567782&doi=10.1016%2fj.asoc.2019.105902&partnerID=40&md5=17d2b585aa127d82e3fc8258cf6282fa}, doi = {10.1016/j.asoc.2019.105902}, year = {2020}, date = {2020-01-01}, journal = {Applied Soft Computing Journal}, volume = {88}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Cai, Y; Stander, J The Threshold GARCH Model: Estimation and Density Forecasting for Financial Returns Journal Article Journal of Financial Econometrics, 18 (2), pp. 395-424, 2020. @article{Cai2020395, title = {The Threshold GARCH Model: Estimation and Density Forecasting for Financial Returns}, author = {Y Cai and J Stander}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089502444&doi=10.1093%2fjjfinec%2fnbz014&partnerID=40&md5=163077f1767626db16decb1550bd24b8}, doi = {10.1093/jjfinec/nbz014}, year = {2020}, date = {2020-01-01}, journal = {Journal of Financial Econometrics}, volume = {18}, number = {2}, pages = {395-424}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ekman, R; Ilderton, A Backreaction in strong field QED: A toy model Journal Article Physical Review D, 101 (5), 2020. @article{Ekman2020, title = {Backreaction in strong field QED: A toy model}, author = {R Ekman and A Ilderton}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083357704&doi=10.1103%2fPhysRevD.101.056022&partnerID=40&md5=f3d5ae489f94fc89416eadd7d3bc34b6}, doi = {10.1103/PhysRevD.101.056022}, year = {2020}, date = {2020-01-01}, journal = {Physical Review D}, volume = {101}, number = {5}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Brakhage, K -H; Niemeyer, A C; Plesken, W; Robertz, D; Strzelczyk, A The icosahedra of edge length 1 Journal Article Journal of Algebra, 545 , pp. 4-26, 2020. @article{Brakhage20204, title = {The icosahedra of edge length 1}, author = {K -H Brakhage and A C Niemeyer and W Plesken and D Robertz and A Strzelczyk}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076873551&doi=10.1016%2fj.jalgebra.2019.04.028&partnerID=40&md5=73b9e2e1490fed7a4056e3c0d94a5236}, doi = {10.1016/j.jalgebra.2019.04.028}, year = {2020}, date = {2020-01-01}, journal = {Journal of Algebra}, volume = {545}, pages = {4-26}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ransley, E; Yan, S; Brown, S; Hann, M; Graham, D; Windt, C; Schmitt, P; Davidson, J; Ringwood, J; Musiedlak, P -H; Wang, J; Wang, J; Ma, Q; Xie, Z; Zhang, N; Zheng, X; Giorgi, G; Chen, H; Lin, Z; Qian, L; Ma, Z; Bai, W; Chen, Q; Zang, J; Ding, H; Cheng, L; Zheng, J; Gu, H; Gong, X; Liu, Z; Zhuang, Y; Wan, D; Bingham, H; Greaves, D A blind comparative study of focused wave interactions with floating structures (CCP-WSI blind test series 3) Journal Article International Journal of Offshore and Polar Engineering, 30 (1), pp. 1-10, 2020. @article{Ransley20201, title = {A blind comparative study of focused wave interactions with floating structures (CCP-WSI blind test series 3)}, author = {E Ransley and S Yan and S Brown and M Hann and D Graham and C Windt and P Schmitt and J Davidson and J Ringwood and P -H Musiedlak and J Wang and J Wang and Q Ma and Z Xie and N Zhang and X Zheng and G Giorgi and H Chen and Z Lin and L Qian and Z Ma and W Bai and Q Chen and J Zang and H Ding and L Cheng and J Zheng and H Gu and X Gong and Z Liu and Y Zhuang and D Wan and H Bingham and D Greaves}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081623074&doi=10.17736%2fijope.2020.jc774&partnerID=40&md5=db564955ed30acee811f6816f4f95585}, doi = {10.17736/ijope.2020.jc774}, year = {2020}, date = {2020-01-01}, journal = {International Journal of Offshore and Polar Engineering}, volume = {30}, number = {1}, pages = {1-10}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Valle, Dalla L; Leisen, F; Rossini, L; Zhu, W Bayesian analysis of immigration in Europe with generalized logistic regression Journal Article Journal of Applied Statistics, 47 (3), pp. 424-438, 2020. @article{DallaValle2020424, title = {Bayesian analysis of immigration in Europe with generalized logistic regression}, author = {L Dalla Valle and F Leisen and L Rossini and W Zhu}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079351321&doi=10.1080%2f02664763.2019.1642310&partnerID=40&md5=735ff23a36917693af567a64113b6c70}, doi = {10.1080/02664763.2019.1642310}, year = {2020}, date = {2020-01-01}, journal = {Journal of Applied Statistics}, volume = {47}, number = {3}, pages = {424-438}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Mohammed, S; Graham, D I; Reis, T Modeling the effects of slip on dipole-wall collision problems using a lattice Boltzmann equation method Journal Article Physics of Fluids, 32 (2), 2020. @article{Mohammed2020, title = {Modeling the effects of slip on dipole-wall collision problems using a lattice Boltzmann equation method}, author = {S Mohammed and D I Graham and T Reis}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079294877&doi=10.1063%2f1.5131865&partnerID=40&md5=2ea3921a69f51975ea2bc99bfd26eadf}, doi = {10.1063/1.5131865}, year = {2020}, date = {2020-01-01}, journal = {Physics of Fluids}, volume = {32}, number = {2}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Cutello, C A; Hellier, E; Stander, J; Hanoch, Y Evaluating the effectiveness of a young driver-education intervention: Learn2Live Journal Article Transportation Research Part F: Traffic Psychology and Behaviour, 69 , pp. 375-384, 2020. @article{Cutello2020375, title = {Evaluating the effectiveness of a young driver-education intervention: Learn2Live}, author = {C A Cutello and E Hellier and J Stander and Y Hanoch}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079845957&doi=10.1016%2fj.trf.2020.02.009&partnerID=40&md5=fa5191dc8573ff4875fb89b2327865ce}, doi = {10.1016/j.trf.2020.02.009}, year = {2020}, date = {2020-01-01}, journal = {Transportation Research Part F: Traffic Psychology and Behaviour}, volume = {69}, pages = {375-384}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Lanario, J W; Hyland, M E; Wei, Y; Jones, R C; Masoli, M Comparison of the effects of pulmonary and extra-pulmonary symptoms on health-related quality of life in patients with severe asthma Journal Article Respiratory Medicine, 162 , 2020. @article{Lanario2020, title = {Comparison of the effects of pulmonary and extra-pulmonary symptoms on health-related quality of life in patients with severe asthma}, author = {J W Lanario and M E Hyland and Y Wei and R C Jones and M Masoli}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077751142&doi=10.1016%2fj.rmed.2020.105870&partnerID=40&md5=d0233addd17ae5a0d1e457e9273592e6}, doi = {10.1016/j.rmed.2020.105870}, year = {2020}, date = {2020-01-01}, journal = {Respiratory Medicine}, volume = {162}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Francesconi, O; Holzmann, M; Lucini, B; Rago, A Free energy of the self-interacting relativistic lattice Bose gas at finite density Journal Article Physical Review D, 101 (1), 2020. @article{Francesconi2020, title = {Free energy of the self-interacting relativistic lattice Bose gas at finite density}, author = {O Francesconi and M Holzmann and B Lucini and A Rago}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078183135&doi=10.1103%2fPhysRevD.101.014504&partnerID=40&md5=2d89d7bbe99588600845f798593ff86c}, doi = {10.1103/PhysRevD.101.014504}, year = {2020}, date = {2020-01-01}, journal = {Physical Review D}, volume = {101}, number = {1}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ilderton, A Coherent quantum enhancement of pair production in the null domain Journal Article Physical Review D, 101 (1), 2020. @article{Ilderton2020c, title = {Coherent quantum enhancement of pair production in the null domain}, author = {A Ilderton}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078129194&doi=10.1103%2fPhysRevD.101.016006&partnerID=40&md5=956ae435ec5bce5dd6e1539ca1d0f841}, doi = {10.1103/PhysRevD.101.016006}, year = {2020}, date = {2020-01-01}, journal = {Physical Review D}, volume = {101}, number = {1}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Graham, D I; Craven, M J An exact algorithm for small-cardinality constrained portfolio optimisation Journal Article Journal of the Operational Research Society, 2020. @article{Graham2020, title = {An exact algorithm for small-cardinality constrained portfolio optimisation}, author = {D I Graham and M J Craven}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079710322&doi=10.1080%2f01605682.2020.1718019&partnerID=40&md5=97a010bbc4ec050e48319c744cb88a1a}, doi = {10.1080/01605682.2020.1718019}, year = {2020}, date = {2020-01-01}, journal = {Journal of the Operational Research Society}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Kluczek, M; Stuhlmeier, R Mass transport for Pollard waves Journal Article Applicable Analysis, 2020. @article{Kluczek2020, title = {Mass transport for Pollard waves}, author = {M Kluczek and R Stuhlmeier}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85087156706&doi=10.1080%2f00036811.2020.1766029&partnerID=40&md5=175e543dc6ee343bb779657856d47074}, doi = {10.1080/00036811.2020.1766029}, year = {2020}, date = {2020-01-01}, journal = {Applicable Analysis}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Sinnah, Bu Z A; Graham, D I; Reis, T Lattice Boltzmann modelling of pulsatile flow using moment boundary conditions Conference 2020. @conference{BuSinnah20202355, title = {Lattice Boltzmann modelling of pulsatile flow using moment boundary conditions}, author = {Z A Bu Sinnah and D I Graham and T Reis}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081064443&partnerID=40&md5=85b7d6bedc7f3d0ba67aade20d49a432}, year = {2020}, date = {2020-01-01}, journal = {Proceedings of the 6th European Conference on Computational Mechanics: Solids, Structures and Coupled Problems, ECCM 2018 and 7th European Conference on Computational Fluid Dynamics, ECFD 2018}, pages = {2355-2366}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Francesconi, O; Holzmann, M; Lucini, B; Rago, A Density of state method for complex action systems Journal Article Acta Physica Polonica B, Proceedings Supplement, 13 (1), pp. 121-126, 2020. @article{Francesconi2020121, title = {Density of state method for complex action systems}, author = {O Francesconi and M Holzmann and B Lucini and A Rago}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078839034&doi=10.5506%2fAPhysPolBSupp.13.121&partnerID=40&md5=be6caf3ae1c7289a8a7a7ab9902bdef7}, doi = {10.5506/APhysPolBSupp.13.121}, year = {2020}, date = {2020-01-01}, journal = {Acta Physica Polonica B, Proceedings Supplement}, volume = {13}, number = {1}, pages = {121-126}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Lange-Hegermann, M; Robertz, D Thomas Decomposition and Nonlinear Control Systems Book Chapter Quadrat A.; Zerz, E (Ed.): Algebraic and Symbolic Computation Methods in Dynamical Systems, 9 , pp. 117-146, Springer, 2020. @inbook{LangeHegermannRobertz2b, title = {Thomas Decomposition and Nonlinear Control Systems}, author = {Lange-Hegermann, M. and Robertz, D.}, editor = {Quadrat, A.; Zerz, E.}, url = {https://link.springer.com/chapter/10.1007/978-3-030-38356-5_4}, year = {2020}, date = {2020-01-01}, booktitle = {Algebraic and Symbolic Computation Methods in Dynamical Systems}, volume = {9}, pages = {117-146}, publisher = {Springer}, series = {Advances in Delays and Dynamics}, abstract = {This paper applies the Thomas decomposition technique to nonlinear control systems, in particular to the study of the dependence of the system behavior on parameters. Thomas' algorithm is a symbolic method which splits a given system of nonlinear partial differential equations into a finite family of so-called simple systems which are formally integrable and define a partition of the solution set of the original differential system. Different simple systems of a Thomas decomposition describe different structural behavior of the control system in general. The paper gives an introduction to the Thomas decomposition method and shows how notions such as invertibility, observability and flat outputs can be studied. A Maple implementation of Thomas' algorithm is used to illustrate the techniques on explicit examples.}, keywords = {}, pubstate = {published}, tppubtype = {inbook} } This paper applies the Thomas decomposition technique to nonlinear control systems, in particular to the study of the dependence of the system behavior on parameters. Thomas' algorithm is a symbolic method which splits a given system of nonlinear partial differential equations into a finite family of so-called simple systems which are formally integrable and define a partition of the solution set of the original differential system. Different simple systems of a Thomas decomposition describe different structural behavior of the control system in general. The paper gives an introduction to the Thomas decomposition method and shows how notions such as invertibility, observability and flat outputs can be studied. A Maple implementation of Thomas' algorithm is used to illustrate the techniques on explicit examples. |
2019 |
Walker, David J; Craven, Matthew J Identifying Good Algorithm Parameters in Evolutionary Multi- and Many-Objective Optimisation: A Visualisation Approach Journal Article Applied Soft Computing, pp. 105902, 2019. @article{djw-mjc-3, title = {Identifying Good Algorithm Parameters in Evolutionary Multi- and Many-Objective Optimisation: A Visualisation Approach}, author = {David J. Walker and Matthew J. Craven}, doi = {10.1016/j.asoc.2019.105902}, year = {2019}, date = {2019-11-28}, journal = {Applied Soft Computing}, pages = {105902}, abstract = {Evolutionary algorithms are often highly dependent on the correct setting of their parameters, and benchmarking different parametrisations allows a user to identify which parameters offer the best performance on their given problem. Visualisation offers a way of presenting the results of such benchmarking so that a non-expert user can understand how their algorithm is performing. By examining the characteristics of their algorithm, such as convergence and diversity, the user can learn how effective their chosen algorithm parametrisation is. This paper presents a technique intended to offer this insight, by presenting the relative performance of a set of EAs optimising the same multi-objective problem in a simple visualisation. The visualisation characterises the behaviour of the algorithm in terms of known performance indicators drawn from the literature, and is capable of visualising the optimisation of many-objective problems also. The method is demonstrated with benchmark test problems from the popular DTLZ and CEC 2009 problem suites, optimising them with different parametrisations of both NSGA-II and NSGA-III, and it is shown that known characteristics of optimisers solving these problems can be observed in the visualisations resulting.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Evolutionary algorithms are often highly dependent on the correct setting of their parameters, and benchmarking different parametrisations allows a user to identify which parameters offer the best performance on their given problem. Visualisation offers a way of presenting the results of such benchmarking so that a non-expert user can understand how their algorithm is performing. By examining the characteristics of their algorithm, such as convergence and diversity, the user can learn how effective their chosen algorithm parametrisation is. This paper presents a technique intended to offer this insight, by presenting the relative performance of a set of EAs optimising the same multi-objective problem in a simple visualisation. The visualisation characterises the behaviour of the algorithm in terms of known performance indicators drawn from the literature, and is capable of visualising the optimisation of many-objective problems also. The method is demonstrated with benchmark test problems from the popular DTLZ and CEC 2009 problem suites, optimising them with different parametrisations of both NSGA-II and NSGA-III, and it is shown that known characteristics of optimisers solving these problems can be observed in the visualisations resulting. |
Alotaibi, Tahani S; Craven, Matthew J Efficient Frontiers in Portfolio Optimisation with Minimum Proportion Constraints Inproceedings Proceedings of the Companion Publication of the 2019 Annual Conference on Genetic and Evolutionary Computation, pp. 358-359, 2019. @inproceedings{tsa-mjc-1, title = {Efficient Frontiers in Portfolio Optimisation with Minimum Proportion Constraints}, author = {Tahani S. Alotaibi and Matthew J. Craven}, doi = {10.1145/3319619.3321900}, year = {2019}, date = {2019-07-31}, booktitle = {Proceedings of the Companion Publication of the 2019 Annual Conference on Genetic and Evolutionary Computation}, pages = {358-359}, abstract = {This work chronicles research into the solution of portfolio problems with metaheuristic solvers. In particular, a genetic algorithm for solving the cardinality constrained portfolio optimisation problem with minimum asset proportions is presented and tested on the datasets of [1]. These datasets form benchmark instances used to test portfolio optimisers and are based upon indices ranging from 31 to 225 assets. The results of the GA are indicatively compared to solutions of [2] for a variety of minimum proportions, suggesting that solutions exhibit certain clustering characteristics for higher proportions. Further work is also discussed. This research is based upon the first part of the ongoing PhD thesis of the first author. }, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } This work chronicles research into the solution of portfolio problems with metaheuristic solvers. In particular, a genetic algorithm for solving the cardinality constrained portfolio optimisation problem with minimum asset proportions is presented and tested on the datasets of [1]. These datasets form benchmark instances used to test portfolio optimisers and are based upon indices ranging from 31 to 225 assets. The results of the GA are indicatively compared to solutions of [2] for a variety of minimum proportions, suggesting that solutions exhibit certain clustering characteristics for higher proportions. Further work is also discussed. This research is based upon the first part of the ongoing PhD thesis of the first author. |
Gerdt, V P; Lange-Hegermann, M; Robertz, D The MAPLE package TDDS for computing Thomas decompositions of systems of nonlinear PDEs Journal Article Computer Physics Communications, 234 , pp. 202-215, 2019. @article{GerdtLangeHegermannRobertzc, title = {The MAPLE package TDDS for computing Thomas decompositions of systems of nonlinear PDEs}, author = {Gerdt, V. P. and Lange-Hegermann, M. and Robertz, D.}, url = {https://doi.org/10.1016/j.cpc.2018.07.025}, year = {2019}, date = {2019-01-02}, journal = {Computer Physics Communications}, volume = {234}, pages = {202-215}, abstract = {We present the Maple package TDDS (Thomas Decomposition of Differential Systems). Given a polynomially nonlinear differential system, which in addition to equations may contain inequations, this package computes a decomposition of it into a finite set of differentially triangular and algebraically simple subsystems whose subsets of equations are involutive. Usually the decomposed system is substantially easier to investigate and solve both analytically and numerically. The distinctive property of a Thomas decomposition is disjointness of the solution sets of the output subsystems. Thereby, a solution of a well-posed initial problem belongs to one and only one output subsystem. The Thomas decomposition is fully algorithmic. It allows to perform important elements of algebraic analysis of an input differential system such as: verifying consistency, i.e., the existence of solutions; detecting the arbitrariness in the general analytic solution; given an additional equation, checking whether this equation is satisfied by all common solutions of the input system; eliminating a part of dependent variables from the system if such elimination is possible; revealing hidden constraints on dependent variables, etc. Examples illustrating the use of the package are given. }, keywords = {}, pubstate = {published}, tppubtype = {article} } We present the Maple package TDDS (Thomas Decomposition of Differential Systems). Given a polynomially nonlinear differential system, which in addition to equations may contain inequations, this package computes a decomposition of it into a finite set of differentially triangular and algebraically simple subsystems whose subsets of equations are involutive. Usually the decomposed system is substantially easier to investigate and solve both analytically and numerically. The distinctive property of a Thomas decomposition is disjointness of the solution sets of the output subsystems. Thereby, a solution of a well-posed initial problem belongs to one and only one output subsystem. The Thomas decomposition is fully algorithmic. It allows to perform important elements of algebraic analysis of an input differential system such as: verifying consistency, i.e., the existence of solutions; detecting the arbitrariness in the general analytic solution; given an additional equation, checking whether this equation is satisfied by all common solutions of the input system; eliminating a part of dependent variables from the system if such elimination is possible; revealing hidden constraints on dependent variables, etc. Examples illustrating the use of the package are given. |
Stuhlmeier, Raphael; Stiassnie, Michael Nonlinear dispersion for ocean surface waves Journal Article Journal of Fluid Mechanics, 859 , pp. 49–58, 2019. @article{stuhlmeier2019nonlinear, title = {Nonlinear dispersion for ocean surface waves}, author = {Raphael Stuhlmeier and Michael Stiassnie}, year = {2019}, date = {2019-01-01}, journal = {Journal of Fluid Mechanics}, volume = {859}, pages = {49--58}, publisher = {Cambridge University Press}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Gerdt, V P; Robertz, D Algorithmic Approach to Strong Consistency Analysis of Finite Difference Approximations to PDE Systems Inproceedings Proceedings of the 2019 International Symposium on Symbolic and Algebraic Computation, 15-18 July 2019, Beihang University, Beijing, China, pp. 163–170, 2019. @inproceedings{GerdtRobertz6, title = {Algorithmic Approach to Strong Consistency Analysis of Finite Difference Approximations to PDE Systems}, author = {Gerdt, V. P. and Robertz, D.}, year = {2019}, date = {2019-01-01}, booktitle = {Proceedings of the 2019 International Symposium on Symbolic and Algebraic Computation, 15-18 July 2019, Beihang University, Beijing, China}, pages = {163--170}, abstract = {For a wide class of polynomially nonlinear systems of partial differential equations we suggest an algorithmic approach to the s(trong)-consistency analysis of their finite difference approximations on Cartesian grids. First we apply the differential Thomas decomposition to the input system, resulting in a partition of the solution set. We consider the output simple subsystem that contains a solution of interest. Then, for this subsystem, we suggest an algorithm for verification of s-consistency for its finite difference approximation. For this purpose we develop a difference analogue of the differential Thomas decomposition, both of which jointly allow to verify the s-consistency of the approximation. As an application of our approach, we show how to produce s-consistent difference approximations to the incompressible Navier-Stokes equations including the pressure Poisson equation.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } For a wide class of polynomially nonlinear systems of partial differential equations we suggest an algorithmic approach to the s(trong)-consistency analysis of their finite difference approximations on Cartesian grids. First we apply the differential Thomas decomposition to the input system, resulting in a partition of the solution set. We consider the output simple subsystem that contains a solution of interest. Then, for this subsystem, we suggest an algorithm for verification of s-consistency for its finite difference approximation. For this purpose we develop a difference analogue of the differential Thomas decomposition, both of which jointly allow to verify the s-consistency of the approximation. As an application of our approach, we show how to produce s-consistent difference approximations to the incompressible Navier-Stokes equations including the pressure Poisson equation. |
Ilderton, A Exact results for scattering on ultrashort plane wave backgrounds Journal Article Physical Review D, 100 (12), 2019. @article{Ilderton2019, title = {Exact results for scattering on ultrashort plane wave backgrounds}, author = {A Ilderton}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077453035&doi=10.1103%2fPhysRevD.100.125018&partnerID=40&md5=d862180107dafc24891cad29e4df62d9}, doi = {10.1103/PhysRevD.100.125018}, year = {2019}, date = {2019-01-01}, journal = {Physical Review D}, volume = {100}, number = {12}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Tang, S; Ilderton, A; King, B One-photon pair annihilation in pulsed plane-wave backgrounds Journal Article Physical Review A, 100 (6), 2019. @article{Tang2019, title = {One-photon pair annihilation in pulsed plane-wave backgrounds}, author = {S Tang and A Ilderton and B King}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077234399&doi=10.1103%2fPhysRevA.100.062119&partnerID=40&md5=20ad7c5c07a2c72a41de4492706c16d4}, doi = {10.1103/PhysRevA.100.062119}, year = {2019}, date = {2019-01-01}, journal = {Physical Review A}, volume = {100}, number = {6}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
King, B; Dillon, B M; Beyer, K A; Gregori, G Axion-like-particle decay in strong electromagnetic backgrounds Journal Article Journal of High Energy Physics, 2019 (12), 2019. @article{King2019, title = {Axion-like-particle decay in strong electromagnetic backgrounds}, author = {B King and B M Dillon and K A Beyer and G Gregori}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077302472&doi=10.1007%2fJHEP12%282019%29162&partnerID=40&md5=0e011f7f18a9b75408bbc869d49e0039}, doi = {10.1007/JHEP12(2019)162}, year = {2019}, date = {2019-01-01}, journal = {Journal of High Energy Physics}, volume = {2019}, number = {12}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Hyland, M E; Lanario, J W; Wei, Y; Jones, R C; Masoli, M Immunity, Inflammation and Disease, 7 (4), pp. 239-249, 2019. @article{Hyland2019239, title = {Evidence for similarity in symptoms and mechanism: The extra-pulmonary symptoms of severe asthma and the polysymptomatic presentation of fibromyalgia}, author = {M E Hyland and J W Lanario and Y Wei and R C Jones and M Masoli}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071298984&doi=10.1002%2fiid3.263&partnerID=40&md5=da1b3b97d1a1d063b51453b4c9727c9c}, doi = {10.1002/iid3.263}, year = {2019}, date = {2019-01-01}, journal = {Immunity, Inflammation and Disease}, volume = {7}, number = {4}, pages = {239-249}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
O'Hara, L; Smith, E R; Barlow, J; Livingstone, N; Herath, N I N S; Wei, Y; Spreckelsen, T F; Macdonald, G Video feedback for parental sensitivity and attachment security in children under five years Journal Article Cochrane Database of Systematic Reviews, 2019 (11), 2019. @article{O'Hara2019, title = {Video feedback for parental sensitivity and attachment security in children under five years}, author = {L O'Hara and E R Smith and J Barlow and N Livingstone and N I N S Herath and Y Wei and T F Spreckelsen and G Macdonald}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075779025&doi=10.1002%2f14651858.CD012348.pub2&partnerID=40&md5=979f586de7d30e372484c4765cdac066}, doi = {10.1002/14651858.CD012348.pub2}, year = {2019}, date = {2019-01-01}, journal = {Cochrane Database of Systematic Reviews}, volume = {2019}, number = {11}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Lavelle, M; McMullan, D One loop Volkov propagator in the Lorentz class of gauges Journal Article Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 798 , 2019. @article{Lavelle2019, title = {One loop Volkov propagator in the Lorentz class of gauges}, author = {M Lavelle and D McMullan}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073121701&doi=10.1016%2fj.physletb.2019.135021&partnerID=40&md5=3a405bb8c3a9fb92815c3391eb5b62b6}, doi = {10.1016/j.physletb.2019.135021}, year = {2019}, date = {2019-01-01}, journal = {Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}, volume = {798}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ilderton, A; King, B; Macleod, A J Absorption cross section in an intense plane wave background Journal Article Physical Review D, 100 (7), 2019. @article{Ilderton2019b, title = {Absorption cross section in an intense plane wave background}, author = {A Ilderton and B King and A J Macleod}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074367171&doi=10.1103%2fPhysRevD.100.076002&partnerID=40&md5=fa0775fbc58caba24c912d304fd73bf9}, doi = {10.1103/PhysRevD.100.076002}, year = {2019}, date = {2019-01-01}, journal = {Physical Review D}, volume = {100}, number = {7}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Christopher, C; Llibre, J; Pantazi, C; Walcher, S On planar polynomial vector fields with elementary first integrals Journal Article Journal of Differential Equations, 267 (8), pp. 4572-4588, 2019. @article{Christopher20194572, title = {On planar polynomial vector fields with elementary first integrals}, author = {C Christopher and J Llibre and C Pantazi and S Walcher}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065514073&doi=10.1016%2fj.jde.2019.05.007&partnerID=40&md5=a9dae1206e8c31e5f6f47cd84fa385cf}, doi = {10.1016/j.jde.2019.05.007}, year = {2019}, date = {2019-01-01}, journal = {Journal of Differential Equations}, volume = {267}, number = {8}, pages = {4572-4588}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Stander, J; Valle, Dalla L; Taglioni, C; Liseo, B; Wade, A; Cortina-Borja, M Analysis of paediatric visual acuity using Bayesian copula models with sinh-arcsinh marginal densities Journal Article Statistics in Medicine, 38 (18), pp. 3421-3443, 2019. @article{Stander20193421, title = {Analysis of paediatric visual acuity using Bayesian copula models with sinh-arcsinh marginal densities}, author = {J Stander and L Dalla Valle and C Taglioni and B Liseo and A Wade and M Cortina-Borja}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85066495457&doi=10.1002%2fsim.8176&partnerID=40&md5=a5a23267a2b20b09d0b01b2f8d98e7ed}, doi = {10.1002/sim.8176}, year = {2019}, date = {2019-01-01}, journal = {Statistics in Medicine}, volume = {38}, number = {18}, pages = {3421-3443}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Davies, C T H; Hornbostel, K; Komijani, J; Koponen, J; Lepage, G P; Lytle, A T; McNeile, C; Collaboration, HPQCD Determination of the quark condensate from heavy-light current-current correlators in full lattice QCD Journal Article Physical Review D, 100 (3), 2019. @article{Davies2019, title = {Determination of the quark condensate from heavy-light current-current correlators in full lattice QCD}, author = {C T H Davies and K Hornbostel and J Komijani and J Koponen and G P Lepage and A T Lytle and C McNeile and HPQCD Collaboration}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072614581&doi=10.1103%2fPhysRevD.100.034506&partnerID=40&md5=2ed99306a29448ab1e796852060b855c}, doi = {10.1103/PhysRevD.100.034506}, year = {2019}, date = {2019-01-01}, journal = {Physical Review D}, volume = {100}, number = {3}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Lavelle, M; McMullan, D Renormalization of the Volkov propagator Journal Article Physical Review D, 100 (3), 2019. @article{Lavelle2019b, title = {Renormalization of the Volkov propagator}, author = {M Lavelle and D McMullan}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072193794&doi=10.1103%2fPhysRevD.100.036001&partnerID=40&md5=432aad2d832826c0b8bfa1c01e14dafb}, doi = {10.1103/PhysRevD.100.036001}, year = {2019}, date = {2019-01-01}, journal = {Physical Review D}, volume = {100}, number = {3}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Eichenseer, K; Balthasar, U; Smart, C W; Stander, J; Haaga, K A; Kiessling, W Jurassic shift from abiotic to biotic control on marine ecological success Journal Article Nature Geoscience, 12 (8), pp. 638-642, 2019. @article{Eichenseer2019638, title = {Jurassic shift from abiotic to biotic control on marine ecological success}, author = {K Eichenseer and U Balthasar and C W Smart and J Stander and K A Haaga and W Kiessling}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068568971&doi=10.1038%2fs41561-019-0392-9&partnerID=40&md5=5ef49bc6806af161f70e0c6c27c79ce7}, doi = {10.1038/s41561-019-0392-9}, year = {2019}, date = {2019-01-01}, journal = {Nature Geoscience}, volume = {12}, number = {8}, pages = {638-642}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Alotaibi, T S; Craven, M J Efficient frontiers in portfolio optimisation with minimum proportion constraints Conference 2019. @conference{Alotaibi2019358, title = {Efficient frontiers in portfolio optimisation with minimum proportion constraints}, author = {T S Alotaibi and M J Craven}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070614257&doi=10.1145%2f3319619.3321900&partnerID=40&md5=860af809cf158c3a97032ac852aedb40}, doi = {10.1145/3319619.3321900}, year = {2019}, date = {2019-01-01}, journal = {GECCO 2019 Companion - Proceedings of the 2019 Genetic and Evolutionary Computation Conference Companion}, pages = {358-359}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Gerdt, V P; Robertz, D 2019. @conference{Gerdt2019163, title = {Algorithmic approach to strong consistency analysis of finite difference approximations to PDE systems}, author = {V P Gerdt and D Robertz}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85069757149&doi=10.1145%2f3326229.3326255&partnerID=40&md5=f7b610ca17b6e751bc5fd66d576a3fd7}, doi = {10.1145/3326229.3326255}, year = {2019}, date = {2019-01-01}, journal = {Proceedings of the International Symposium on Symbolic and Algebraic Computation, ISSAC}, pages = {163-170}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Adamo, T; Ilderton, A Gluon helicity flip in a plane wave background Journal Article Journal of High Energy Physics, 2019 (6), 2019. @article{Adamo2019, title = {Gluon helicity flip in a plane wave background}, author = {T Adamo and A Ilderton}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067239484&doi=10.1007%2fJHEP06%282019%29015&partnerID=40&md5=2544cf4bfd90e23a695ccfecdefa44bb}, doi = {10.1007/JHEP06(2019)015}, year = {2019}, date = {2019-01-01}, journal = {Journal of High Energy Physics}, volume = {2019}, number = {6}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ransley, E; Yan, S; Brown, S; Mai, T; Graham, D; Ma, Q; Musiedlak, P -H; Engsig-Karup, A; Eskilsson, C; Li, Q; Wang, J; Xie, Z; Venkatachalam, S; Stoesser, T; Zhuang, Y; Li, Q; Wan, D; Chen, G; Chen, H; Qian, L; Ma, Z; Mingham, C; Causon, D; Gatin, I; Jasak, H; Vukˇcevi´C, V; Downie, S; Higuera, P; Buldakov, E; Stagonas, D; Chen, Q; Zang, J; Greaves, D A blind comparative study of focused wave interactions with a fixed FPSO-like structure (CCP-WSI blind test series 1) Journal Article International Journal of Offshore and Polar Engineering, 29 (2), pp. 113-127, 2019. @article{Ransley2019113, title = {A blind comparative study of focused wave interactions with a fixed FPSO-like structure (CCP-WSI blind test series 1)}, author = {E Ransley and S Yan and S Brown and T Mai and D Graham and Q Ma and P -H Musiedlak and A Engsig-Karup and C Eskilsson and Q Li and J Wang and Z Xie and S Venkatachalam and T Stoesser and Y Zhuang and Q Li and D Wan and G Chen and H Chen and L Qian and Z Ma and C Mingham and D Causon and I Gatin and H Jasak and V Vukˇcevi´C and S Downie and P Higuera and E Buldakov and D Stagonas and Q Chen and J Zang and D Greaves}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068898525&doi=10.17736%2fijope.2019.jc748&partnerID=40&md5=2033b5f6a72b5912ad1a932ace50e514}, doi = {10.17736/ijope.2019.jc748}, year = {2019}, date = {2019-01-01}, journal = {International Journal of Offshore and Polar Engineering}, volume = {29}, number = {2}, pages = {113-127}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Publications
2021 |
Singularities of Algebraic Differential Equations Journal Article Advances in Applied Mathematics, 131 , pp. Paper No. 102266, 2021. |
Description of the origami waterbomb cell kinematics as a basis for the design of thin-walled oricrete shells Inproceedings Behnejad, S A; Parke, G A R; Samavati, O A (Ed.): IASS2020/21-SURREY7: Annual Symposium of the International Association for Shell and Spatial Structures (IASS2020/21) and the 7th Surrey International Conference on Spatial Structure, 2021. |
An Involutive GVW Algorithm and the Computation of Pommaret Bases Journal Article Mathematics in Computer Science, 15 (3), pp. 419-452, 2021. |
2020 |
Visualising Evolution History in Multi- and Many-Objective Optimisation Conference Forthcoming Proceedings of Parallel Problem Solving from Nature, Lecture Notes in Computer Science Springer, Forthcoming. |
Modern Engineering Mathematics Book Pearson, 2020. |
An Exact Algorithm for Small-Cardinality Constrained Portfolio Optimisation Journal Article Journal of the Operational Research Society, 2020. |
The icosahedra of edge length 1 Journal Article Journal of Algebra, 545 , pp. 4–26, 2020. |
Master-field simulations of O(a)-improved lattice QCD: Algorithms, stability and exactness Journal Article Computer Physics Communications, 255 , 2020. |
A simple method for correcting for the Will Rogers phenomenon with biometrical applications Journal Article Biometrical Journal, 62 (4), pp. 1080-1089, 2020. |
Toward the observation of interference effects in nonlinear Compton scattering Journal Article Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 804 , 2020. |
Uniform locally constant field approximation for photon-seeded pair production Journal Article Physical Review A, 101 (4), 2020. |
The analytic structure of amplitudes on backgrounds from gauge invariance and the infra-red Journal Article Journal of High Energy Physics, 2020 (4), 2020. |
Genetic networks in Parkinson's and Alzheimer's disease Journal Article Aging, 12 (6), pp. 5221-5243, 2020. |
Identifying good algorithm parameters in evolutionary multi- and many-objective optimisation: A visualisation approach Journal Article Applied Soft Computing Journal, 88 , 2020. |
The Threshold GARCH Model: Estimation and Density Forecasting for Financial Returns Journal Article Journal of Financial Econometrics, 18 (2), pp. 395-424, 2020. |
Backreaction in strong field QED: A toy model Journal Article Physical Review D, 101 (5), 2020. |
The icosahedra of edge length 1 Journal Article Journal of Algebra, 545 , pp. 4-26, 2020. |
A blind comparative study of focused wave interactions with floating structures (CCP-WSI blind test series 3) Journal Article International Journal of Offshore and Polar Engineering, 30 (1), pp. 1-10, 2020. |
Bayesian analysis of immigration in Europe with generalized logistic regression Journal Article Journal of Applied Statistics, 47 (3), pp. 424-438, 2020. |
Modeling the effects of slip on dipole-wall collision problems using a lattice Boltzmann equation method Journal Article Physics of Fluids, 32 (2), 2020. |
Evaluating the effectiveness of a young driver-education intervention: Learn2Live Journal Article Transportation Research Part F: Traffic Psychology and Behaviour, 69 , pp. 375-384, 2020. |
Comparison of the effects of pulmonary and extra-pulmonary symptoms on health-related quality of life in patients with severe asthma Journal Article Respiratory Medicine, 162 , 2020. |
Free energy of the self-interacting relativistic lattice Bose gas at finite density Journal Article Physical Review D, 101 (1), 2020. |
Coherent quantum enhancement of pair production in the null domain Journal Article Physical Review D, 101 (1), 2020. |
An exact algorithm for small-cardinality constrained portfolio optimisation Journal Article Journal of the Operational Research Society, 2020. |
Mass transport for Pollard waves Journal Article Applicable Analysis, 2020. |
Lattice Boltzmann modelling of pulsatile flow using moment boundary conditions Conference 2020. |
Density of state method for complex action systems Journal Article Acta Physica Polonica B, Proceedings Supplement, 13 (1), pp. 121-126, 2020. |
Thomas Decomposition and Nonlinear Control Systems Book Chapter Quadrat A.; Zerz, E (Ed.): Algebraic and Symbolic Computation Methods in Dynamical Systems, 9 , pp. 117-146, Springer, 2020. |
2019 |
Identifying Good Algorithm Parameters in Evolutionary Multi- and Many-Objective Optimisation: A Visualisation Approach Journal Article Applied Soft Computing, pp. 105902, 2019. |
Efficient Frontiers in Portfolio Optimisation with Minimum Proportion Constraints Inproceedings Proceedings of the Companion Publication of the 2019 Annual Conference on Genetic and Evolutionary Computation, pp. 358-359, 2019. |
The MAPLE package TDDS for computing Thomas decompositions of systems of nonlinear PDEs Journal Article Computer Physics Communications, 234 , pp. 202-215, 2019. |
Nonlinear dispersion for ocean surface waves Journal Article Journal of Fluid Mechanics, 859 , pp. 49–58, 2019. |
Algorithmic Approach to Strong Consistency Analysis of Finite Difference Approximations to PDE Systems Inproceedings Proceedings of the 2019 International Symposium on Symbolic and Algebraic Computation, 15-18 July 2019, Beihang University, Beijing, China, pp. 163–170, 2019. |
Exact results for scattering on ultrashort plane wave backgrounds Journal Article Physical Review D, 100 (12), 2019. |
One-photon pair annihilation in pulsed plane-wave backgrounds Journal Article Physical Review A, 100 (6), 2019. |
Axion-like-particle decay in strong electromagnetic backgrounds Journal Article Journal of High Energy Physics, 2019 (12), 2019. |
Immunity, Inflammation and Disease, 7 (4), pp. 239-249, 2019. |
Video feedback for parental sensitivity and attachment security in children under five years Journal Article Cochrane Database of Systematic Reviews, 2019 (11), 2019. |
One loop Volkov propagator in the Lorentz class of gauges Journal Article Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 798 , 2019. |
Absorption cross section in an intense plane wave background Journal Article Physical Review D, 100 (7), 2019. |
On planar polynomial vector fields with elementary first integrals Journal Article Journal of Differential Equations, 267 (8), pp. 4572-4588, 2019. |
Analysis of paediatric visual acuity using Bayesian copula models with sinh-arcsinh marginal densities Journal Article Statistics in Medicine, 38 (18), pp. 3421-3443, 2019. |
Determination of the quark condensate from heavy-light current-current correlators in full lattice QCD Journal Article Physical Review D, 100 (3), 2019. |
Renormalization of the Volkov propagator Journal Article Physical Review D, 100 (3), 2019. |
Jurassic shift from abiotic to biotic control on marine ecological success Journal Article Nature Geoscience, 12 (8), pp. 638-642, 2019. |
Efficient frontiers in portfolio optimisation with minimum proportion constraints Conference 2019. |
2019. |
Gluon helicity flip in a plane wave background Journal Article Journal of High Energy Physics, 2019 (6), 2019. |
A blind comparative study of focused wave interactions with a fixed FPSO-like structure (CCP-WSI blind test series 1) Journal Article International Journal of Offshore and Polar Engineering, 29 (2), pp. 113-127, 2019. |