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VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:USC Topology Seminar: Deformation inequivalent symplectic stru
 ctures and Donaldson's four-six question
X-WR-TIMEZONE:Pacific Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260711T135622Z
UID:tag:localist.com\,2008:EventInstance_45889427379205
DTSTART:20240318T210000Z
DTEND:20240318T220000Z
DESCRIPTION:Luya Wang\, Stanford University\n\n \nTitle: Deformation inequi
 valent symplectic structures and Donaldson's four-six question\n\n \n\nAbs
 tract: Studying symplectic structures up to deformation equivalences is a 
 fundamental question in symplectic geometry. Donaldson asked: given two ho
 meomorphic closed symplectic four-manifolds\, are they diffeomorphic if an
 d only if their stabilized symplectic six-manifolds\, obtained by taking p
 roducts with CP^1 with the standard symplectic form\, are deformation equi
 valent? I will discuss joint work with Amanda Hirschi on showing how defor
 mation inequivalent symplectic forms remain deformation inequivalent when 
 stabilized\, under certain algebraic conditions. This gives the first coun
 terexamples to one direction of Donaldson’s “four-six” question and 
 the related Stabilizing Conjecture by Ruan. Time permitting\, I will also 
 discuss our upcoming work giving more supporting evidence in the other dir
 ection of the “four-six” question.
GEO:34.022409;-118.291027
LOCATION:Kaprielian Hall (KAP)\, 245
SUMMARY:USC Topology Seminar: Deformation inequivalent symplectic structure
 s and Donaldson's four-six question
URL;VALUE=URI:https://calendar.usc.edu/event/usc-topology-seminar-deformati
 on-inequivalent-symplectic-structures-and-donaldsons-four-six-question
CATEGORIES:Lecture / Talk / Workshop
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