1976/11/01 by Man-Duen Choi, Edward G. Effros · 7 citations
Mathematics · #Advanced Operator Algebra Research #Advanced Topics in Algebra #Advanced Banach Space Theory
paper · doi:10.2307/1970968
openalex publication_date 1976/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
(1.1)~~~~~~~~~~~~~~~~~~~1 where A, B are C*-algebras (resp., unital C*-algebras), J is a closed twosided ideal in B, 7 is the quotient map, and A, * are contractive (resp., unital) completely positive maps. The lifting problem for q is to determine whether or not one can find * so that the diagram commutes. In this paper, we will show that this is the case if A is separable, and either A, B/J, or B