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math.OA2026
Obstructions to homomorphisms between homogeneous C*-algebras
Ilan Hirshberg, N. Christopher Phillips
We develop a method to find new obstructions to the existence of homomorphisms between homogeneous C*-algebras with prescribed behavior on K-theory. As an application, we give a co…
math.OA2026
An isomorphism theorem for infinite reduced free products
Ilan Hirshberg, N. Christopher Phillips
Let C_1, C_2, ... be a sequence of separable unital C*-algebras, equipped with faithful tracial states and satisfying a mild condition. Let A be a unital direct limit of one dimens…