Speaker：Song Dai  （Tianjin University）

Time：2018年8月10日     上午  9:00-9:50

Room：东区管理科研楼  数学科学学院1418室

Abstract：In this talk, we consider the rigidity problem of the hexagonal triangulated plane under the piecewise linear conformal changes introduced by Luo. In 2013, Wu, Gu and Sun showed the rigidity under the assumption all angles lying in [δ, π/2-δ], for some δ>0. In this talk, we improve their results by releasing the angle restriction to [0, π/2]. This is a joint work with Huabin Ge and Shiguang Ma.