On the Weyl spectrum of a Hilbert space operator

Baxley, John V.

doi:10.1090/S0002-9939-1972-0298444-7

On the Weyl spectrum of a Hilbert space operator
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by John V. Baxley PDF

Proc. Amer. Math. Soc. 34 (1972), 447-452 Request permission

Abstract:

Using the perturbation definition of the Weyl spectrum, conditions are given on a closed (possibly unbounded) linear operator T in a Hilbert space which allow the Weyl spectrum to be characterized as a subset of the spectrum of T.

References

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Über beschrankte quadratische Formen deren differenz vollstetig ist

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