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Commuting pairs of self-adjoint elements in C*-algebras

  • Osamu Hatori EMAIL logo
Published/Copyright: February 28, 2017
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Abstract

We give a condition on commutativity of a pair of self-adjoint elements in a C*-algebra with respect to the continuous functional calculus. We also give an answer to the question raised by Jeang and Ko that if a non-constant continuous function totally spans the given C*-algebra.

MSC 2010: Primary 46L05; 15A27

Support of the research of both authors by the Austrian Science Fund (FWF), project I 1923-N25, and the Czech Science Foundation (GAČR), project 15-34697L, as well as by ÖAD, project CZ 04/2017, and of the first author by the project CZ.1.07/2.3.00/20.0051 “Algebraic Methods of Quantum Logics” is gratefully acknowledged.



(Communicated by Lajos Molnár)


References

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Received: 2015-02-14
Accepted: 2015-03-04
Published Online: 2017-02-28
Published in Print: 2017-03-01

© 2017 Mathematical institute slovak academy of sciences

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