题目：$\sigma_2$ Yamabe problem and related $\sigma_2$ Penrose inequality on4-manifolds

报告人：韦韡 (南京大学)

时间：2021.11.18 14:00-15:00

地点：腾讯会议6016953907(密码123456)

摘要：We raise the $\sigma_2$ Yamabe problem for conic 4-manifolds. For conic 4-spheres, we find a 

necessary condition for the existence of solutions, and discuss the borderline case. If the $sigma_2$ curvature has lower bound $\frac{3}{2}$,

we prove a Penrose type inequality relating the mass and contributions from singularities.