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SUMMARY:Sándor Kovács (University of Washington)
DTSTART:20210521T190000Z
DTEND:20210521T203000Z
DTSTAMP:20260423T024723Z
UID:CAGS/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CAGS/12/">Ho
 dge sheaves for singular families</a>\nby Sándor Kovács (University of W
 ashington) as part of Columbia algebraic geometry seminar\n\n\nAbstract\nT
 his is a report on joint work with Behrouz Taji. Given a flat projective m
 orphism $f:X\\to B$ of complex varieties\, assuming that $B$ is smooth\, w
 e construct a functorial system of reflexive Hodge sheaves on $B$. If in a
 ddition\, $X$ is also smooth then this system gives an extension of the Ho
 dge bundle underlying the VHS of the smooth locus of $f$. This in turn pro
 vides a criterion that all VHSs of geometric origin must satisfy. As an in
 dependent application we prove a singular version of Viehweg's conjecture 
 about base spaces of families of maximal variation.\n
LOCATION:https://researchseminars.org/talk/CAGS/12/
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