A+ CATEGORY SCIENTIFIC UNIT

Ideals and hereditary subalgebras in operator algebras

Volume 212 / 2012

Melahat Almus, David P. Blecher, Charles John Read Studia Mathematica 212 (2012), 65-93 MSC: Primary 46H10, 46L07, 47L30, 46L52; Secondary 16D70, 47L25, 47L40. DOI: 10.4064/sm212-1-5

Abstract

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.

Authors

  • Melahat AlmusDepartment of Mathematics
    University of Houston
    Houston, TX 77204-3008, U.S.A.
    e-mail
  • David P. BlecherDepartment of Mathematics
    University of Houston
    Houston, TX 77204-3008, U.S.A.
    e-mail
  • Charles John ReadDepartment of Pure Mathematics
    University of Leeds
    Leeds LS2 9JT, England
    e-mail

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