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Factorization of triangular operators and ideals through the diagonal*

Published online by Cambridge University Press:  20 January 2009

John Lindsay Orr
Affiliation:
Mathematics Department, University of Nebraska, Lincoln, NE 68588, USAE-mail address:jorr@unlinfo.unl.edu
David R. Pitts
Affiliation:
Mathematics Department, University of Nebraska, Lincoln, NE 68588, USAE-mail address:dpitts@unlinfo.unl.edu
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Abstract

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We give a necessary and sufficient condition to determine when an operator in the nest algebra of doubly infinite block upper triangular operators factors through a diagonal projection. An example shows that this condition does not extend to more general nest algebras, but a similar criterion yields a description of the ideals of nest algebras generated by diagonal projections.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 1997

Footnotes

*

Both authors were partially supported by NSF grant DMS-9204811.

References

REFERENCES

1. Arveson, W. B., Interpolation problems in nest algebras, J. Funct. Anal. 20 (1975), 208233.CrossRefGoogle Scholar
2. Davidson, K. R., Nest Algebras (Pitman Research Notes in Mathematics Series, 191, Longman Scientific and Technical Pub. Co., London, New York, 1988).Google Scholar
3. Davidson, K. R., Harrison, K. and Orr, J. L., Epimorphisms of nest algebras, Internat. J. Math., to appear.Google Scholar
4. Erdos, J. A. and Power, S. C., Weakly closed ideals of nest algebras, J. Operator Theory 7 (1982), 219235.Google Scholar
5. Larson, D. R. and Pitts, D. R., Idempotents in Nest Algebras, J. Funct. Anal. 97 (1991), 162193.CrossRefGoogle Scholar
6. Orr, J. L., The maximal ideals of a nest algebra, J. Funct. Anal. 124 (1994), 119134.Google Scholar
7. Orr, J. L., Automorphism invariant ideals of a continuous nest algebra, preprint.Google Scholar