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arXiv · 1501.03030

Classifying finite-dimensional C*-algebras by posets of their commutative C*-subalgebras

Bert Lindenhovius
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Abstract

We consider the functor C that to a unital C*-algebra A assigns the partial order set C(A) of its commutative C*-subalgebras ordered by inclusion. We investigate how some C*-algebraic properties translate under the action of C to order-theoretical properties. In particular, we show that A is finite dimensional if and only C(A) satisfies certain chain conditions. We eventually show that if A and B are C*-algebras such that A is finite dimensional and C(A) and C(B) are order isomorphic, then A and B must be *-isomorphic.

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Bert Lindenhovius. 2015-01-13. Classifying finite-dimensional C*-algebras by posets of their commutative C*-subalgebras. https://doi.org/10.1007/s10773-015-2817-6

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