Herrero's approximation problem for quasidiagonal operators

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Let T be a quasidiagonal operator on a separable Hilbert space. It is shown that there exists a sequence of operators {Tn*} such that dim(C*(Tn)) < ∞ and ∥T-Tn∥ → 0 if and only if C*(T) is exact.

Original languageEnglish (US)
Pages (from-to)360-365
Number of pages6
JournalJournal of Functional Analysis
Issue number2
StatePublished - Nov 10 2001

All Science Journal Classification (ASJC) codes

  • Analysis


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