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SUMMARY:Yakov Eliashberg (Stanford University)
DTSTART:20260622T140000Z
DTEND:20260622T150000Z
DTSTAMP:20260602T192901Z
UID:Geolis/180
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Geolis/180/"
 >Invariants of open contact manifolds and contactomorphisms</a>\nby Yakov 
 Eliashberg (Stanford University) as part of Geometria em Lisboa (IST)\n\nI
 nteractive livestream: https://tecnico-pt.zoom.us/j/94726839940\n\nAbstrac
 t\nSince the groundbreaking work of M. Gromov in the 1980s many tools have
  been developed for distinguishing open symplectic domains. However\, unti
 l recently\, similar questions in the contact geometric setup were largely
  open. For instance\, it was not known whether there are open domains in t
 he standard contact vector space of dimension $>3$ which are diffeomorphic
  but not contactomorphic to it (in dimension $3$ it is known that all of t
 hem are). In my lecture I will discuss Floer theoretic tools for answering
  this type of questions. As one application I will construct a continuous 
 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/
URL:https://tecnico-pt.zoom.us/j/94726839940
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