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X-WR-CALNAME:Centre for Mathematical Sciences
X-ORIGINAL-URL:http://math-sciences.org
X-WR-CALDESC:Events for Centre for Mathematical Sciences
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DTSTART:20170101T000000
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DTSTART;TZID=UTC:20170222T130000
DTEND;TZID=UTC:20170222T140000
DTSTAMP:20221203T181316
CREATED:20170215T122945Z
LAST-MODIFIED:20170215T122945Z
UID:2340-1487768400-1487772000@math-sciences.org
SUMMARY:JosĂ© Gines Espin Buendia (University of Murcia)
DESCRIPTION:Analytic plane sets are locally stars: a dynamically based proof\nIn 1971\, Dennis Sullivan discovered an important obstruction for a topological space to be the set of zeros of a two-variable real analytic function: up to some trivial cases\, it must be locally a topological star with evenly many branches. \nThe property is a very useful tool when dealing with topological dynamics of analytic flows on real surfaces. However\, all the proofs of Sullivanâ€™s theorem I am aware of require advanced tools of algebraic topology\, and hence are hard to follow for the non-specifically trained reader. \nThe aim of this talk is to try to justify why the result is important in the field of topological dynamics and to present a proof using only elementary techniques from this field.
URL:http://math-sciences.org/event/jose-gines-espin-buendia-university-of-murcia/
LOCATION:Room 101\, 2-5 Kirkby Place\, Plymouth\, PL4 6DT\, United Kingdom
CATEGORIES:Pure Mathematics,Seminars
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