Lifting Problems and the Cohomology of C *-Algebras

Man-Duen Choi, Edward G. Effros

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Source: Crossref

Published: Oct 1, 1977

DOI: 10.4153/cjm-1977-108-x

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Source abstract

Suppose that A and B are C *-algebras, J is a closed two-sided ideal in B, and that η : B →B/J is the quotient map. Given a linear contraction φ : A → B/J, a linear map Ψ: A → B is a lifting of φ if one has a commutative diagram

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