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UID:20260714T170309EDT-5200VVBVxN@132.216.98.100
DTSTAMP:20260714T210309Z
DESCRIPTION:Title: Local rigidity and C^0 symplectic and contact topology 
 \n\nAbstract:I will explain how coisotropic submanifolds of symplectic man
 ifolds can be distinguished among all submanifolds by a criterion ('local 
 rigidity') related to the Hofer energy necessary to disjoin open sets from
  them.  This criterion is invariant under symplectic homeomorphisms\, lead
 ing to a simplified proof of the Humiliere-Leclercq-Seyfaddini theorem tha
 t a symplectic-homeomorphic image of a coisotropic submanifold that is smo
 oth is coisotropic.  Moreover much of this picture extends to the contact 
 context\, allowing one to extend the class of C^0-limits of contactomorphi
 sms which are known to map Legendrian submanifolds to Legendrian submanifo
 lds.\n
DTSTART:20190920T180000Z
DTEND:20190920T190000Z
LOCATION:Room 5448\, CA\, Pav. André-Aisenstadt
SUMMARY:Michael Usher \, UGA
URL:https://www.mcgill.ca/mathstat/channels/event/michael-usher-uga-300753
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