王者体育

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科学研究
报告题目:

automorphism groups of certain cyclic orbifolds of lattice voa

报告人:

linzhenghong yanjiuyuan(institute of mathematics, academia sinica)

报告时间:

报告地点:

王者体育zoomhuiyihao: 69263059761 mima: 202009

报告摘要:

王者体育let $v$ be a voa and $g\in aut(v)$ a finite automorphism of $v$. the fixed point subset $v^{\langle g\rangle}= \{x\in v| gx=x\} $ is a subvoa of $v$ and is often called a cyclic orbifold of $v$. in this talk, we will discuss the full automorphism groups of certain cyclic orbifolds of lattice voa. in particular, we will determine the full automorphism group of some orbifold voa $v_{\lambda_g}^g$ associated with coinvariant lattices of the leech lattice $\lambda$. as an application, we will determine the full automorphism groups of several holomorphic voas of central charge 24.

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