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Simplex algebras and their representation

Published online by Cambridge University Press:  18 May 2009

M. S. Vijayakumar
Affiliation:
Dalhousie University, Halifax, N.S., Canada
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This paper establishes a relationship (Theorem 4.1) between the approaches of A. C. Thompson [8, 9] and E. G. Effros [2] to the representation of simplex algebras, that is, real unital Banach algebras that are simplex spaces with the unit for order identity. It proves that the (nonempty) interior of the associated cone is contained in the principal component of the set of all regular elements of the algebra. It also conjectures that each maximal ideal (in the order sense—see below) of a simplex algebra contains a maximal left ideal of the algebra. This conjecture and other aspects of the relationship are illustrated by considering algebras of n × n real matrices.

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Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 1973