開催日時
2016/06/02 Thu 16:30 - 18:00
場所
6号館809号室
講演者
Toshiyuki Akita
講演者所属
Hokkaido University
概要
In his paper "Braids and crossed modules" (2012), Huebschmann describes a braid group as a crossed module over itself and gives its properties. We will generalize some of his results to Artin groups.