On the rate of change of spectra of operators

Solution of Equations and Systems of Equations

E. I., Alexander Ostrowski · Mathematics of Computation · 1967 · 954 citations

Natural Sciences, Mathematics, Applied Mathematics +7

The variation of the spectrum of a normal matrix

Alan J. Hoffman, Helmut W. Wielandt · Duke Mathematical Journal · 1953 · 328 citations

Natural Sciences, Radiology, Spectroscopic Analysis +6

Bounds for iterates, inverses, spectral variation and fields of values of non-normal matrices

Peter Henrici · Numerische Mathematik · 1962 · 221 citations

Natural Sciences, Computer Science, Dynamical Systems +10

Eigenvalues of matrix-valued analytic maps

K. R. Parthasarathy · Journal of the Australian Mathematical Society · 1978 · 14 citations · Full text

Natural Sciences, Visualization, Representation Theory +4