Discretization of C*-algebras

15 Feb 2017 Heunen Chris Reyes Manuel L.

We investigate how a C*-algebra could consist of functions on a noncommutative set: a discretization of a C*-algebra $A$ is a $*$-homomorphism $A \to M$ that factors through the canonical inclusion $C(X) \subseteq \ell^\infty(X)$ when restricted to a commutative C*-subalgebra. Any C*-algebra admits an injective but nonfunctorial discretization, as well as a possibly noninjective functorial discretization, where $M$ is a C*-algebra... (read more)

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  • OPERATOR ALGEBRAS
  • FUNCTIONAL ANALYSIS