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NON-CONSTANT CR MORPHISMS BETWEEN COMPACT STRONGLY PSEUDO-CONVEX CR MANIFOLDS AND ETALE COVERING BETWEEN RESOLUTIONS OF ISOLATED SINGULARITIES
丘成栋 教授 (清华大学数学系)
2018-01-01 12:13  华东师范大学

摘要:
Strongly pseudoconvex CR manifolds are boundaries of Stein varieties with isolated normal singularities. We prove that any non-constant CR morphism between two (2n − 1)-dimensional strongly pseudoconvex CR manifolds lying in a n-dimensional Stein variety with isolated singularities are
necessarily a CR biholomorphism. As a corollary, we prove that any
non-constant self map of (2n − 1)-dimensional strongly pseudoconvex
CR manifold is a CR automorphism. We also prove that a finite etale
covering map between two resolutions of isolated normal singularities must
be an isomorphism. This is a joint work with YU-CHAO TU and HUAIQING ZUO