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Factor Representations and Factor States on a C*-Algebra

Published online by Cambridge University Press:  20 November 2018

James A. Schoen*
Affiliation:
University of Wisconsin, La Crosse, Wisconsin
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Let A be a C*-algebra and H a Hilbert space of large enough (infinite at least) dimension so that every πƒ, where ƒ is a factor state on A, can be unitarily represented on H. Let Fac (A, H) denote the set of all factor representations of A on H. If π is in Fac (A, H) we call its essential subspace the smallest, closed, vector subspace KoiH such that π (A ) is null on H Θ K. We define Fac(A, H) to be the set of elements in Fac (A, H) whose essential subspace is H.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1976

References

1. Bichteler, K., A generalization to the non-separable case of Takesaki s duality theorem for C*-algebras, Invent. Math. 9 (1969), 8998.Google Scholar
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