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N-point Virasoro algebras.
赵开明教授(加拿大Wilfrid Laurier University, 中国科学院数学所)
2018-01-01 12:13  华东师范大学

《曹锡华代数论坛》报告

报 告 人: 赵开明 教授
(加拿大Wilfrid Laurier University, 中国科学院数学所)

报告题目: N-point Virasoro algebras.

报告内容: In this talk I will introduce and study $n$-point Virasoro algebras, $V_a$, which are natural generalizations of the classical Virasoro algebra and have as quotients multipoint genus zero Krichever-Novikov type algebras. The necessary and sufficient conditions for the later two such Lie algebras to be isomorphic will be given. Moreover we determine their automorphisms, their derivation algebras, their universal central extensions, and some other properties. The list of automorphism groups that occur is $C_n$, $D_n$, $A_4$, $S_4$ and $A_5$. This is based on a joint work with Ben Cox, Xiangqian Guo and Rencai Lu.

时间:2011/5/9(周一), 上午10点-11点

地点:闵行校区数学系一楼主报告厅