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TZID:Europe/Vienna
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DTSTART:20190331T030000
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DTSTART:20191027T020000
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BEGIN:VEVENT
DTSTAMP:20260404T052218Z
UID:5c3337d55e58a016974847@ist.ac.at
DTSTART:20190926T133000
DTEND:20190926T153000
DESCRIPTION:Speaker: Anton Mellit\nhosted by Tamas Hausel\nAbstract: I will
  talk about a way to decompose the character variety of a Riemann surface 
 of arbitrary rank with prescribed semisimple generic local monodromies int
 o cells where each cell looks like a product of an affine space and a symp
 lectic torus. This can be thought of as abelianization. As an application\
 , we deduce the curious hard Lefschetz property conjectured by Hausel\, Le
 tellier and Rodriguez-Villegas\, which claims that the operator of cup pro
 duct with the class of the holomorphic symplectic form is an isomorphism b
 etween complementary degrees of the associated graded with respect to the 
 weight filtration on the cohomology.
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101)\, ISTA
ORGANIZER:boosthui@ist.ac.at
SUMMARY:Anton Mellit: The curious hard Lefschetz property for character var
 ieties
URL:https://talks-calendar.ista.ac.at/events/2172
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