[Turkmath:6717] Bogazici Matematik Carsamba Seminerleri - ilan ekte

[ferit.ozturk at boun.edu.tr]

Konusmalar İngilizce yapılmaktadır.
Gecmis ve yaklasan konusmalar icin:
http://www.math.boun.edu.tr/index.php?option=com_content&task=section&id=49&Itemid=356




Rigid and non-smoothable Schubert classes

İzzet Coşkun
University of Illinois, Chicago


Date  : Wednesday, December 16, 2009
Time  :	14:00
Place :	TB 250, Boğaziçi Üniversitesi


Abstract: Given a cohomology class in a projective variety, when can it be
represented by a smooth subvariety? When is a variety rigid? When does a
variety admit non-trivial deformations? When can it be deformed to a smooth
subvariety? I will explore these questions in concrete examples and discuss a
complete characterization of Schubert classes in Grassmannians that are rigid.
The talk will be elementary and should be accessible to anyone either with some
familiarity with singular or DeRahm cohomology or a willingness to believe in
pictures. 



Tea and coffee will be served at 15:00
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