Bull. Austral. Math. Soc. 72(3) pp.407--421, 2005.

Similarity invariant semigroups generated by
non-Fredholm operators

Iztok Kavkler

Received: 5th July, 2005



Let A $ \in $ B($ \hs $) be a bounded non-compact operator that is not semi-Fredholm. The similarity invariant semigroup generated by A is shown to consist of all operators that are not semi-Fredholm and satisfy obvious inequalities for the nullity and co-nullity.

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(Metadata: XML, RSS, BibTeX) MathSciNet: MR2199643 Z'blatt-MATH: 1103.47029


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