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Recent Developments in Sphere Theorems

Prof. Hongwei Xu(Zhejiang University)
Friday, March 8th, 2019, 1:00 PM  闵行数学楼401报告厅
Abstract:It plays an important role in geometry and topology of manifolds to study sphere theorems. During the past fifteen years, a number of great achievements on sphere theorems, including the Poincare conjecture, the 1/4-pinching differentiable sphere theorem, and the Willmore conjecture, have been made by several geometers. In this talk, I will discuss recent progress and new techniques developed in the study of sphere theorems. I will also propose some open problems in this area.
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