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sigma_2 Yamabe problem on conic 4-sphere
时间  Datetime
2019-07-16 10:00 — 11:00 
地点  Venue
813
报告人  Speaker
Wei, Wei
单位  Affiliation
复旦大学
邀请人  Host
Lai, Mijia
报告摘要  Abstract

We give a necessary condition for the existence of conic metrics with positive constant $\sigma_2$ curvature on 4-sphere. This is a nonllinear generalization of conic surface theory of Troyanov. Based on the Mass we constrcuted, when singular divisors converges to critical case , we prove that the conic 4-sphere converges to American football in Gromov-Hausdorff topology.