花争吵
发表于 2025-3-27 00:14:10
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Directed
发表于 2025-3-27 05:03:17
Distributionen und Greensche Funktion,result of this section is that all BN-pairs characterized in the title are “provided by” algebraic simple groups over finite fields in the known standard way (for a precise statement, cf. theorem 11.7). This is an easy consequence of the analogous statement for buildings (theorem 11.4), which itself
人充满活力
发表于 2025-3-27 05:35:31
Distributionen und Greensche Funktion,ings of rank 2. Here, similar results are obtained for BN-pairs (13.5, 13.32); it will be seen that the proofs are considerably simpler than that of 4.1.2. In 13.5, an arbitrary group G with BN-pair (B,N) appears as an amalgamated sum of the parabolic subgroups “of rank 2” containing B, but we shall
BLAZE
发表于 2025-3-27 10:52:26
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Countermand
发表于 2025-3-27 14:51:56
Buildings of Spherical Type and Finite BN-Pairs978-3-540-38349-9Series ISSN 0075-8434 Series E-ISSN 1617-9692
骨
发表于 2025-3-27 20:13:23
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悄悄移动
发表于 2025-3-28 00:57:36
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ANTH
发表于 2025-3-28 04:13:40
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修改
发表于 2025-3-28 07:34:19
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Spinal-Tap
发表于 2025-3-28 11:08:46
Buildings,onditions hold:. It is clear that Δ is a chamber complex and that the apartments are isomorphic subcomplexes. We shall see (3.15) that the isomorphism class of the apartments is entirely determined by Δ. More precisely, it can be shown that if a complex Δ possesses a set α of subcomplexes such that