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On the fundamental group of the Galois cover of certain algebraic surfaces

Wanyuan Xu(Shanghai Normal University)
Friday, March 1st, 2019, 1:00 PM  闵行数学楼402报告厅
 
Abstract: Let X be a surface of degree n, which is considered as a branch cover of CP^2 with respect to a generic projection. The surface X has a natural Galois cover with Galois group S_n. In this talk, we will use Moishezon-Teicher’s method to compute the fundamental group of the Galois cover of certain algebraic surfaces that can degenerate to a union of n projective planes such that no three planes meet in a line. This is joint work with M. Amram, C. Gong, M. Teicher and S.-L. Tan.
   
 
 
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