1.

Record Nr.

UNINA9910817227003321

Autore

Jones Vaughan F. R. <1952->

Titolo

Actions of finite groups on the hyperfinite type II[subscript 1] factor / / Vaughan F.R. Jones

Pubbl/distr/stampa

Providence, Rhode Island : , : American Mathematical Society, , [1980]

©1980

ISBN

1-4704-0641-1

Descrizione fisica

1 online resource (79 p.)

Collana

Memoirs of the American Mathematical Society, , 0065-9266 ; ; number 237

Disciplina

510 s

512/.55

Soggetti

C*-algebras

Finite groups

Representations of groups

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"Volume 28 ... end of volume."

Originally presented as the author's thesis, University of Geneva.

Nota di bibliografia

Bibliography: pages 68-70.

Nota di contenuto

CONTENTS --  CHAPTER 1: THE INVARIANTS, STATEMENT OF THE MAIN THEOREM --  1.1 Notation --  1.2 The characteristic Invariant --  1.3 The Algebra C[sub(u)]N --  1.4 The Inner invariant, the main theorem --  1.5 Equivariant s.m.u. 's and model actions --  CHAPTER 2: THE FIXED POINT ALGEBRA AND THE CROSSED PRODUCT --  2.1 The fixed point algebra MG --  2.2 The crossed product W*(M,G) --  CHAPTER 3: COCYCLES AND MATRIX UNITS --  3.1 Cocycles and coboundaries --  3.2 Three technical lemmas --  3.3 Approximate unitary cocycles --   3.4 Equivariant s.m.u. 's and perturbations thereof CHAPTER 4: Q-KERNELS AND ALL THAT --  4.1 Q-Kernels --  4.2 All that --  4.3 A result on extensions --  CHAPTER 5: CONJUGACY OF OUTER ACTIONS --  5.1 Central sequences and ultrafilters --  5.2 A tensor product factorization --  5.3 Conjugacy of outer actions --  CHAPTER 6: STABLE CONJUGACY AND THE MAIN THEOREM --  6.1 Actions with zero characteristic invariant --  6.2 Stable conjugacy --  6.3 Proof of the main theorem --  CHAPTER 7: APPLICATIONS --  7.1 Classification of injective Q-kernels --  7.2 Weak equivalence.



""7.3 The case N central in G""""7.4 Three examples""