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SUMMARY:Yuhan Sun (Rutgers University)
DTSTART:20230111T151000Z
DTEND:20230111T163000Z
DTSTAMP:20260423T005739Z
UID:GDS/75
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GDS/75/">Hea
 vy sets and relative symplectic cohomology</a>\nby Yuhan Sun (Rutgers Univ
 ersity) as part of Geometry and Dynamics seminar\n\n\nAbstract\nHeavy sets
  were introduced by Entov-Polterovich around 2009. They reveal \nsuprising
  rigidity of certain compact subsets of a closed symplectic manifold\, \nf
 rom a functional persepective. When a compact subset is a smooth Lagrangia
 n \nsubmanifold\, there is a well-established relation between its heavine
 ss and \nthe non-vanishing of its Lagrangian Floer cohomology. In this tal
 k we \ndescribe an equivalence between the heaviness of general compact su
 bsets \nand the non-vanishing of another Floer-type invariant\, called the
  relative \nsymplectic cohomology. If time permits\, we will discuss appli
 cations and \nquestions we learned from this equivalence. Based on joint w
 ork with C.Mak \nand U.Varolgunes.\n
LOCATION:https://researchseminars.org/talk/GDS/75/
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