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- W4300080309 abstract "The main objective of this paper is to determine the simplicial and cyclic cohomology groups of the Cuntz semigroup algebra $ell^1(Cuntz)$. In order to do so, we first establish some general results which can be used when studying simplicial and cyclic cohomology of Banach algebras in general. We then turn our attention to $ell^1(Cuntz)$, showing that the cyclic cohomology groups of degree $n$ vanish when $n$ is odd and are one-dimensional when $n$ is even ($nge 2$). Using the Connes-Tzygan exact sequence, these results are used to show that the simplicial cohomology groups of degree $n$ vanish for $nge 1$. We also determine the simplicial and cyclic cohomology of the tensor algebra of a Banach space, a class which includes the algebra on the free semigroup on $m$-generators $ell^1(FS)$." @default.
- W4300080309 created "2022-10-03" @default.
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- W4300080309 date "2010-07-27" @default.
- W4300080309 modified "2023-09-30" @default.
- W4300080309 title "The cyclic and simplicial cohomology of the Cuntz semigroup algebra" @default.
- W4300080309 doi "https://doi.org/10.48550/arxiv.1007.4661" @default.
- W4300080309 hasPublicationYear "2010" @default.
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