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Author Paradan, Paul-Emile, author.

Title Witten non abelian localization for equivariant K-theory, and the [Q, R]=0 theorem / Paul-Emile Paradan, Michéle Vergne
Published Providence : American Mathematical Society, [2019]
©2019

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Description 1 online resource (v, 84 pages)
Series Memoirs of the American Mathematical Society ; v. 261
Memoirs of the American Mathematical Society.
Contents Cover -- Title page -- Introduction -- Chapter 1. Index Theory -- 1.1. Elliptic and transversally elliptic symbols -- 1.2. Functoriality -- 1.3. Clifford bundles and Dirac operators -- Chapter 2. \K-theoretic localization -- 2.1. Deformation à la Witten of Dirac operators -- 2.2. Abelian Localization formula -- 2.3. Non abelian localization formula -- Chapter 3. "Quantization commutes with Reduction" Theorems -- 3.1. The [,]=0 theorem for Clifford modules -- 3.2. The [,]=0 theorem for almost complex manifolds -- 3.3. A slice theorem for deformed symbol -- 3.4. The Hamiltonian setting
Chapter 4. Branching laws -- 4.1. Quasi polynomial behaviour -- 4.2. Multiplicities on a face -- Bibliography -- Back Cover
Summary The purpose of the present memoir is two-fold. First, the authors obtain a non-abelian localization theorem when M is any even dimensional compact manifold : following an idea of E. Witten, the authors deform an elliptic symbol associated to a Clifford bundle on M with a vector field associated to a moment map. Second, the authors use this general approach to reprove the [Q, R] = 0 theorem of Meinrenken-Sjamaar in the Hamiltonian case and obtain mild generalizations to almost complex manifolds. This non-abelian localization theorem can be used to obtain a geometric description of the multiplici
Bibliography Includes bibliographical references (pages 69-71)
Notes Description based on print version record
Subject Non-Abelian groups.
K-theory.
Grupos abelianos
Teoría K
K-theory
Non-Abelian groups
Form Electronic book
Author Vergne, Michèle, author.
ISBN 9781470453978
1470453975
9781470453985
1470453983