Local properties of the Hochschild cohomology of C*-algebras

Let A be a C*-algebra, and let X be a Banach A-bimodule. Johnson [B. E. Johnson, 'Local derivations on C*-algebras are derivations', Trans. Amer Math. Soc. 353 (2000), 313-325] showed that local derivations from A into X are derivations. We extend this concept of locality to the higher cohomology of a C*-algebra and show that, for every n is an element of N, bounded local n-cocycles from A((n)) into X are n-cocycles.


Published in:
Journal Of The Australian Mathematical Society, 84, 117-130
Year:
2008
Keywords:
Laboratories:




 Record created 2010-11-30, last modified 2018-03-17


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