Descent in Buildings (AM-190), Volume I

Descent in Buildings (AM-190), Volume I
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Format E-Bok
Kopisperre Teknisk DRM
Filformat PDF
Utgivelsesår 2015
Forlag Princeton University Press
Språk Engelsk
ISBN 9781400874019
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Om Descent in Buildings (AM-190)

Descent in Buildings begins with the resolution of a major open question about the local structure of Bruhat-Tits buildings. The authors then put their algebraic solution into a geometric context by developing a general fixed point theory for groups acting on buildings of arbitrary type, giving necessary and sufficient conditions for the residues fixed by a group to form a kind of subbuilding or "form" of the original building. At the center of this theory is the notion of a Tits index, a combinatorial version of the notion of an index in the relative theory of algebraic groups. These results are combined at the end to show that every exceptional Bruhat-Tits building arises as a form of a "residually pseudo-split" Bruhat-Tits building. The book concludes with a display of the Tits indices associated with each of these exceptional forms.This is the third and final volume of a trilogy that began with Richard Weiss' The Structure of Spherical Buildings and The Structure of Affine Buildings.


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Mer fra Bernhard Muhlherr; Holger P. Petersson; Richard M. Weiss

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