Concepedia

Operators that are points of spectral continuity

John B. Conway, Bernard B. Morrel

Integral Equations and Operator Theory · 1979 · 76 citations · 9 references

DOI

Concepts

References

9

Rings of Continuous Functions.

E. R. Lorch, Leonard Gillman, Meyer Jerison · American Mathematical Monthly · 1961 · 2.3K citations

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A Hilbert Space Problem Book.

Peter Fillmore, Nigel Higson, Paul R. Halmos · American Mathematical Monthly · 1984 · 344 citations

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On the essential numerical range, the essential spectrum, and a problem of Halmos

Peter Fillmore, Joseph G. Stampfli, J. P. Williams · 1972 · 158 citations

, , +11

The variation of spectra

J. D. Newburgh · Duke Mathematical Journal · 1951 · 133 citations

, , +5

A note on quasitriangular operators

R. G. Douglas, Carl Pearcy · Duke Mathematical Journal · 1970 · 58 citations

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