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Transactions of the American Mathematical Society

ISSN 1088-6850(online) ISSN 0002-9947(print)



Lie ideals in triangular operator algebras

Authors: T. D. Hudson, L. W. Marcoux and A. R. Sourour
Journal: Trans. Amer. Math. Soc. 350 (1998), 3321-3339
MSC (1991): Primary 47D25, 46K50
MathSciNet review: 1458325
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Abstract: We study Lie ideals in two classes of triangular operator algebras: nest algebras and triangular UHF algebras. Our main results show that if $\mathcal {L}$ is a closed Lie ideal of the triangular operator algebra $\mathbb {A}$, then there exist a closed associative ideal $\mathcal {K}$ and a closed subalgebra $\mathfrak {D}_{\mathcal {K}}$ of the diagonal $\mathbb {A}\cap \mathbb {A}^*$ so that $\mathcal {K} \subseteq \mathcal {L} \subseteq \mathcal {K}+ \mathfrak {D}_{\mathcal {K}}$.

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Additional Information

T. D. Hudson
Affiliation: Department of Mathematics East Carolina University Greenville, North Carolina, 27858-4353

L. W. Marcoux
Affiliation: Department of Mathematical Sciences University of Alberta Edmonton, Alberta, Canada T6G 2G1
MR Author ID: 288388

A. R. Sourour
Affiliation: Department of Mathematics University of Victoria Victoria, British Columbia, Canada V8W 3P4

Received by editor(s): October 4, 1996
Additional Notes: This research was supported in part by an NSF grant (to Hudson) and by NSERC (of Canada) grants (to Marcoux and Sourour)
Article copyright: © Copyright 1998 American Mathematical Society