Conjugacy of Alt[5] and SL(2, 5) subgroups of E[8](C)
著者
書誌事項
Conjugacy of Alt[5] and SL(2, 5) subgroups of E[8](C)
（Memoirs of the American Mathematical Society, no. 634）
American Mathematical Society, 1998
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注記
"May 1998, volume 133, number 634 (end of volume)"
Includes bibliographical references
内容説明・目次
内容説明
Exceptional complex Lie groups have become increasingly important in various fields of mathematics and physics. As a result, there has been interest in expanding the representation theory of finite groups to include embeddings into the exceptional Lie groups. Cohen, Griess, Lisser, Ryba, Serre and Wales have pioneered this area, classifying the finite simple and quasisimple subgroups that embed in the exceptional complex Lie groups. This work contains the first major results concerning conjugacy classes of embeddings of finite subgroups of an exceptional complex Lie group in which there are large numbers of classes. The approach developed in this work is character theoretic, taking advantage of the classical subgroups of $E_8 (\mathbb C)$. The machinery used is relatively elementary and has been used by the author and others to solve other conjugacy problems. The results presented here are very explicit.Each known conjugacy class is listed by its fusion pattern with an explicit character afforded by an embedding in that class.
目次
Introduction and Preliminaries The dihedral group of order 6 The dihedral group of order 10 The $\textnormal {Alt}_5$ and $\textnormal {SL} (2, 5)$ fusion patterns in $\textnormal {G}, \mathcal A, \Delta$ and $\Omega$ Fusion patterns of $\textnormal {Alt}_5$ and $\textnormal {SL} (2, 5)$ subgroups of $\textnormal {H}$ Fusion patterns of $\textnormal {Alt}_5$ subgroups of $\mathcal E$ Conjugacy classes of $\textnormal {Alt}_5$ subgroups of $\textnormal {G}$ Conjugacy classes of $\textnormal {SL} (2, 5)$ subgroups of $\textnormal {G}$ Appendix Table of notation References.
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