Ideals and hereditary subalgebras in operator algebras
Studia Mathematica, Tome 212 (2012) no. 1, pp. 65-93

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This paper may be viewed as having two aims. First, we continue our study of algebras of operators on a Hilbert space which have a contractive approximate identity, this time from a more Banach-algebraic point of view. Namely, we mainly investigate topics concerned with the ideal structure, and hereditary subalgebras (or HSA's, which are in some sense a generalization of ideals). Second, we study properties of operator algebras which are hereditary subalgebras in their bidual, or equivalently which are `weakly compact'. We also give several examples answering natural questions that arise in such an investigation.
DOI : 10.4064/sm212-1-5
Keywords: paper may viewed having aims first continue study algebras operators hilbert space which have contractive approximate identity time banach algebraic point view namely mainly investigate topics concerned ideal structure hereditary subalgebras hsas which sense generalization ideals second study properties operator algebras which hereditary subalgebras their bidual equivalently which weakly compact several examples answering natural questions arise investigation

Melahat Almus 1 ; David P. Blecher 1 ; Charles John Read 2

1 Department of Mathematics University of Houston Houston, TX 77204-3008, U.S.A.
2 Department of Pure Mathematics University of Leeds Leeds LS2 9JT, England
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Melahat Almus; David P. Blecher; Charles John Read. Ideals and hereditary subalgebras in operator algebras. Studia Mathematica, Tome 212 (2012) no. 1, pp. 65-93. doi: 10.4064/sm212-1-5

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