题目：Universal Skein theory for group actions
报告人：Yunxiang Ren (Harvard University)
时间：7月11日，16:00-17:00
地点：明德楼B区201学术报告厅
摘要：Given a group action on a finite set, we define the group-action model which consists of tensor network diagrams which are invariant under the group symmetry. In particular, group-action models can be realized as the even part of group-subgroup subfactor planar algebras. Moreover, all group-subgroup subfactor planar algebras arise in this way from transitive actions. In this paper, we provide a universal skein theory for those planar algebras. With the help of this skein theory, we give a positive answer to a question asked by Vaughan Jones in the late nineties.
