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SUMMARY:Roberto Pignatelli (University of Trento)
DTSTART:20200421T130000Z
DTEND:20200421T140000Z
DTSTAMP:20260422T222159Z
UID:WarwickAG/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WarwickAG/1/
 ">Rigid compact complex surfaces that are not infinitesimally rigid</a>\nb
 y Roberto Pignatelli (University of Trento) as part of Warwick algebraic g
 eometry seminar\n\n\nAbstract\nA complex manifold is rigid if every small 
 deformation of its complex structure is trivial. The usual argument for pr
 oving the rigidity of a complex manifold is by a well known "standard" coh
 omological criterium. Morrow and Kodaira posed in 1971 the problem of cons
 tructing a rigid manifold that does not satisfy it. \n\nI will present a n
 ew criterium for rigidity of a manifold of dimension 2 that is more genera
 l than the standard one. As an application\, I will produce a family of ex
 amples satisfying our criterium and not the classical one\, so answering t
 he above question. \n\nThis is a joint work with I. Bauer.\n
LOCATION:https://researchseminars.org/talk/WarwickAG/1/
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