✦ LIBER ✦

A Computer-Free Construction of J4

✍ Scribed by A.A Ivanov; U Meierfrankenfeld

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 478 KB
Volume: 219
Category: Article
ISSN: 0021-8693
DOI: 10.1006/jabr.1999.7851

No coin nor oath required. For personal study only.

✦ Synopsis

Define a finite simple group J to be of J -type or simply J provided that J 4 4 contains an involution z with C z ; 2 1q 12 3 Aut Mat .

Ž .

J q 22

The purpose of this paper is to give the first computer-free construction of a group of J type. In addition, we achieve yet another uniqueness proof for groups of J 4 4 type via the simple connectedness of the 2-local geometry of such a group.

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