Moufang sets of finite Morley rank of odd type
Moufang sets of finite Morley rank of odd type
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奇型有限莫利秩牟方集
DOI:
10.1016/j.jalgebra.2014.01.001
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发表时间:
2014
影响因子:
0.9
通讯作者:
Wiscons, Joshua
中科院分区:
文献类型:
--
作者:
Wiscons, Joshua
We show that for a wide class of groups of finite Morley rank the presence of a split BN-pair of Tits rank 1 forces the group to be of the form PSL 2 and the BN-pair to be standard. Our approach is via the theory of Moufang sets. Specifically, we investigate infinite and so-called hereditarily proper Moufang sets of finite Morley rank in the case where the little projective group has no infinite elementary abelian 2-subgroups and show that all such Moufang sets are standard (and thus associated to PSL 2 (F) for F an algebraically closed field of characteristic not 2) provided the Hua subgroups are nilpotent. Further, we prove that the same conclusion can be reached whenever the Hua subgroups are L-groups and the root groups are not simple.
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