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SUMMARY:Aleksander Doan
DTSTART:20210223T140000Z
DTEND:20210223T150000Z
DTSTAMP:20260423T021229Z
UID:Freemath/40
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Freemath/40/
 ">Counting pseudo-holomorphic curves in symplectic six-manifolds</a>\nby A
 leksander Doan as part of Free Mathematics Seminar\n\n\nAbstract\nThe sign
 ed count of embedded pseudo-holomorphic curves in a symplectic manifold ty
 pically depends on the choice of an almost complex structure on the manifo
 ld and so does not lead to a symplectic invariant. However\, I will discus
 s two instances in which such naive counting does define a symplectic inva
 riant. The proof of invariance combines methods of symplectic geometry wit
 h results of geometric measure theory\, especially regularity theory for c
 alibrated currents. The talk is based on joint work with Thomas Walpuski. 
 Time permitting\, I will also discuss a related project\, joint with Eleny
  Ionel and Thomas Walpuski\, whose goal is to use geometric measure theory
  to prove the Gopakumar-Vafa finiteness conjecture.\n
LOCATION:https://researchseminars.org/talk/Freemath/40/
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