BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Yakov Eliashberg (Stanford University) DTSTART:20260622T140000Z DTEND:20260622T150000Z DTSTAMP:20260623T013556Z UID:Geolis/180 DESCRIPTION:Title: Invariants of open contact manifolds and contactomorphisms\nby Yakov Eliashberg (Stanford University) as part of Geometria em Lisboa (IST)\n\n\ nAbstract\nSince the groundbreaking work of M. Gromov in the 1980s many to ols have been developed for distinguishing open symplectic domains. Howeve r\, until recently\, similar questions in the contact geometric setup were largely open. For instance\, it was not known whether there are open doma ins in the standard contact vector space of dimension $>3$ which are diffe omorphic but not contactomorphic to it (in dimension $3$ it is known that all of them are). In my lecture I will discuss Floer theoretic tools for a nswering this type of questions. As one application I will construct a con tinuous family of pairwise non-contactomorphic open balls in the standard contact ${\\mathbb R}^5$. The lecture is based on a joint work in progress with K. Ajij\, Mahan Mj\, Dishant Pancholi and L. Polterovich.\n LOCATION:https://researchseminars.org/talk/Geolis/180/ END:VEVENT END:VCALENDAR