Buildings of Spherical Type and Finite BN-Pairs

Buildings of Spherical Type and Finite BN-Pairs
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Publisher : Springer
Total Pages : 313
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ISBN-10 : 9783540383499
ISBN-13 : 3540383492
Rating : 4/5 (492 Downloads)

Book Synopsis Buildings of Spherical Type and Finite BN-Pairs by : J. Tits

Download or read book Buildings of Spherical Type and Finite BN-Pairs written by J. Tits and published by Springer. This book was released on 2009-02-05 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: These notes are a slightly revised and extended version of mim- graphed notes written on the occasion of a seminar on buildings and BN-pairs held at Oberwolfach in April 1968. Their main purpose is to present the solution of the following two problems: (A) Determination of the buildings of rank >; and irreducible, spherical type, other than ~ and H ("of spherical type" means "with finite Weyl 4 group", about the excluded types H, cf. the addenda on p. 274). Roughly speaking, those buildings all turn out to be associated to simple algebraic or classical groups (cf. 6. ;, 6. 1;, 8. 4. ;, 8. 22, 9. 1, 10. 2). An easy application provides the enumeration of all finite groups with BN-pairs of irreducible type and rank >;, up to normal subgroups contained in B (cf. 11. 7). (B) Determination of all isomorphisms between buildings of rank > 2 and spherical type associated to algebraic or classical simple groups and, in parti cular, description of the full automorphism groups of such buildings (cf. 5. 8, 5. 9, 5. 10, 6. 6, 6. 1;, 8. 6, 9. ;, 10. 4). Except for the appendices, the notes are rather strictly oriented - ward these goals.


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