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NCTS Seminar in Algebraic Geometry
 
14:00 - 15:00, October 24, 2019 (Thursday)
R440, Astronomy-Mathematics Building, NTU
(台灣大學天文數學館 440室)
Degree Formula for Grassmann Bundles
Hajime Kaji (Waseda University)

Abstract:

The Grassmann bundle of -planes associated to a vector bundle on a scheme is by definition a fibre bundle whose fibre at each point is isomorphic to the Grassmann variety of -planes in the vector space . If is projective over a field and is very ample, then is naturally embedded into a projective space with relative Plücker embedding over . In this talk I explain a degree formula for . This is a jointwork with T. Terasoma.



 

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