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Watts cohomology for a class of Banach algebras and the duality of compact abelian groups

✍ Scribed by Stephen A. Selesnick


Publisher
Springer-Verlag
Year
1973
Tongue
French
Weight
566 KB
Volume
130
Category
Article
ISSN
0025-5874

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Description of the Automorphism Group Au
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It is shown that, for a minimal action a of a compact Kac algebra K on a factor A, the group of all automorphisms leaving the fixed-point algebra A a pointwise invariant is topologically isomorphic to the intrinsic group of the dual Kac algebra # K K. As an application, in the case where dim K o 1,