学术报告

On Orbit Braids

阅读次数:696

题目:On Orbit Braids
报告人:吕志 教授(复旦大学 数学科学澳门新葡萄京888)

地点:致远楼101室
时间:3月26日 下午3:30-4:30
摘要:Let $M$ be a connected topological manifold of dimension at least 2 with an effective action of a finite group $G$. Associated with the orbit configuration space of the $G$-manifold $M$, we give the notion of orbit braids and define the orbit braid group. We further study the subgroups of orbit braid group and various relations among these subgroups with the fundamental groups of the configuration spaces given by the manifold $M$ with or without the $G$-action, and the $M/G$. We also calculate the orbit braid groups in the plane with two typical actions. This talk is based upon the joint work with Hao Li and Fengling Li.

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