On K-theoretic invariants of semigroup C*-algebras from actions of congruence monoids

Published 2 Jun 2019 in math.OA and math.NT | (1906.00445v2)

Abstract: We study semigroup C*-algebras of semigroups associated with number fields and initial data arising naturally from class field theory. Using K-theoretic invariants, we investigate how much information about the initial number-theoretic data is encoded in our semigroup C*-algebras.

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