Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2024 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Projectionless C*-algebras
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by Llolsten Kaonga
Proc. Amer. Math. Soc. 130 (2002), 33-38
DOI: https://doi.org/10.1090/S0002-9939-01-06059-2
Published electronically: April 26, 2001

Abstract:

We give a sufficient condition for a unital C*-algebra to have no nontrivial projections, and we apply this result to known examples and to free products. We also show how questions of existence of projections relate to the norm-connectedness of certain sets of operators.
References
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Bibliographic Information
  • Llolsten Kaonga
  • Affiliation: Aprisma Technologies, Durham, New Hampshire 03824
  • Email: lkaonga@aprisma.com
  • Received by editor(s): February 4, 1997
  • Received by editor(s) in revised form: May 31, 2000
  • Published electronically: April 26, 2001
  • Communicated by: Palle E. T. Jorgensen
  • © Copyright 2001 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 130 (2002), 33-38
  • MSC (1991): Primary 05C38, 15A15; Secondary 05A15, 15A18
  • DOI: https://doi.org/10.1090/S0002-9939-01-06059-2
  • MathSciNet review: 1855616