Central extensions of self-dual type-a complex lattices1
作者:
Xiaoping Xu,
期刊:
Communications in Algebra
(Taylor Available online 1994)
卷期:
Volume 22,
issue 4
页码: 1281-1303
ISSN:0092-7872
年代: 1994
DOI:10.1080/00927879408824906
出版商: Marcel Dekker, Inc.
数据来源: Taylor
摘要:
In this paper, we find an exact sequence involving the automorphism group of a self-dual type-A complex lattice (including the Niemeier lattice A122and the complex Leech lattice) and the automorphism of a certain group central extension of the lattice. Such an exact sequence is important for the study of finite groups which have a moonshine representation analogous to that of the Monster
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