学术报告
报告人： 韦韡 （复旦大学上海数学中心）
报告题目 \sigma_2 Yamabe problem on conic 4-sphere
报告摘要: 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. This is joint work with Hao Fang.
时间：2019年11月19日（周二）上午10:00-11:00
地点：数学学院203报告厅
