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Compact Operators in Reductive Algebras

Published online by Cambridge University Press:  20 November 2018

Edward A. Azoff*
Affiliation:
University of Georgia, Athens, Georgia
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Let be a Hilbert space and denote the collection of (bounded, linear) operators on by . Throughout this paper, the term ‘algebra’ will refer to a subalgebra of ; unless otherwise stated, it will not be assumed to contain I or to be closed in any topology.

An algebra is said to be transitive if it has no non-trivial invariant subspaces. The following lemma has revolutionized the study of transitive algebras. For a pr∞f and a general discussion of its implications, the reader is referred to [5].

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1975

References

1. Cater, F. S., Lectures on real and complex vector spaces (W. B. Saunders Co., Philadelphia, 1966).Google Scholar
2. Dixmier, J., Les algebres d'operateurs dans Vespace Hilbertien, 2nd edition (Gauthier-Villars, Paris, 1969).Google Scholar
3. Gamelin, T., Uniform algebras (Prentice Hall, Englew∞d, N.J., 1969).Google Scholar
4. Gilfeather, F., On the Suzuki structure theory for non self-adjoint operators on Hilbert space, Acta Sci. Math. (Szeged) 32 (1971), 239249.Google Scholar
5. Pearcy, C. and Shields, A., A survey of the Lomonosov technique in the theory of invariant subspaces, Topics in Operator Theory, Math. Surveys, No. 13 (Amer. Math. Soc, Providence, 1974).Google Scholar
6. Radjavi, H. and Rosenthal, P., A sufficient condition that an operator algebra be self-adjoint, Can. J. Math., 23 (1971), 588597.Google Scholar
7. Rosenthal, P., On reductive algebras containing compact operators (to appear in Proc. Amer. Math. Soc).Google Scholar