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Transactions of the American Mathematical Society

ISSN 1088-6850(online) ISSN 0002-9947(print)

 

 

$ K$-theory and multipliers of stable $ C\sp \ast$-algebras


Author: J. A. Mingo
Journal: Trans. Amer. Math. Soc. 299 (1987), 397-411
MSC: Primary 46L80; Secondary 18F25, 19K56, 46M20
MathSciNet review: 869419
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Abstract: The main theorem is that if $ A$ is a $ C^{\ast}$-algebra with a countable approximate identity consisting of projections, then the unitary group of $ M(A \otimes K)$ is contractible. This gives a realization, via the index map, of $ {K_0}(A)$ as components in the set of Fredholm operators on $ {H_A}$.


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DOI: https://doi.org/10.1090/S0002-9947-1987-0869419-7
Article copyright: © Copyright 1987 American Mathematical Society