YMSC Topology SeminarOrganizers:陈伟彦、高鸿灏、黄意、林剑锋、孙巍峰Speaker:Sicheng LU 陆斯成USTCTime:Thur., 15:45-16:45, Dec. 12, 2024Venue:B725, Shuangqing Complex Building AOnline:Zoom Meeting ID: 405 416 0815Passcode: 111111Title:Dihedral cone spherical metrics and measured foliationsAbstract:The study of cone spherical metrics traces back to the uniformization problem of Riemann surf...
Fano fourfolds with large anticanonical base locusA famous theorem of Shokurov states that a general anticanonical divisor of a smooth Fano threefold is a smooth K3 surface. This is quite surprising since there are several examples where the base locus of the anticanonical system has codimension two. In this paper we show that for four-dimensional Fano manifolds the behaviour is completely oppo...