Sasaki geometry and Frankel conjecture

開催日時
2014/07/04 金 10:30 - 12:00
場所
3号館152号室
講演者
Song Sun (孫崧)
講演者所属
サイモンズセンター・ストーニーブルック大学
概要

In this talk I will discuss a characterization of weighted projective spaces by a positive curvature condition. This can be viewed as an extension of the Mori-Siu-Yau theorem on the Frankel conjecture. The proof involves geometric involution equation combined with a finite dimensional deformation in Sasaki geometry. The latter is an odd dimensional cousin of Kahler geometry, and is intimately related to the theory of affine cones with isolated singularities.