THE ESSENTIAL RANK OF FUSION SYSTEMS OF BLOCKS OF SYMMETRIC GROUPS

被引:8
作者
An, Jianbei [1 ]
Dietrich, Heiko [1 ]
机构
[1] Univ Auckland, Dept Math, Auckland, New Zealand
关键词
Symmetric groups; conjugation families; essential rank;
D O I
10.1142/S0218196711006686
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let p be a prime and let B be a p-block of the symmetric group S(n) on n points. Let (D, b(D)) be a Sylow B-subgroup of S(n). We consider the fusion system F-(D,F- bD)(G, B) and determine a precise formula for its essential rank. In addition, the p-blocks B which admit a p-local subgroup of S(n) controlling B-fusion are characterized.
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页数:15
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