Decomposable and spectral operators on a Hilbert space

Wadhwa, Bhushan L.

doi:10.1090/S0002-9939-1973-0322581-2

Decomposable and spectral operators on a Hilbert space
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by Bhushan L. Wadhwa PDF

Proc. Amer. Math. Soc. 40 (1973), 112-114 Request permission

Abstract:

A necessary and sufficient condition for a decomposable operator, on a Hilbert space, to be equal to a normal plus a commuting quasi-nilpotent operator is found.

References

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Spectral, $M$-hyponormal and decomposable operators