报告主题:群代数的表示维数(Representation dimensions of group algebras)
报告人:惠昌常 教授 (首都师范大学)
报告时间:2020年10月21日(周三)9:00-12:00
参会方式:腾讯会议
会议ID:884 700 494
邀请人:孟沆洋
主办部门:理学院数学系
报告摘要:Given a field k, a group G and a subgroup H of G, we consider relations on representation dimensions of the group algebras kG and kH. This is done by applications of Frobenius extensions. In particular, we show that, for any subgroup H of a finite nilpotent group G, if [G:H] is invertible in the field, then the representation dimensions of kG and kH are the same.
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