Linear maps preserving pseudospectrum and condition spectrum

A Hilbert Space Problem Book.

Peter Fillmore, Nigel Higson, Paul R. Halmos · American Mathematical Monthly · 1984 · 343 citations

Spectral Theory, Linear Operator, Engineering +1

Linear preserver problems: A brief introduction and some special techniques

Chi-Kwong Li, Nam‐Kiu Tsing · Linear Algebra and its Applications · 1992 · 240 citations

Mathematical Programming, Numerical Analysis, Engineering +8

Spectrum-preserving linear maps

Ali Jafarian, A. R. Sourour · Journal of Functional Analysis · 1986 · 196 citations

Spectral Theory, Linear Operator, Engineering +4

Linear Transformations on Algebras of Matrices

Marvin Marcus, B. N. Moyls · Canadian Journal of Mathematics · 1959 · 170 citations · Full text

Spectral Theory, Total Unimodularity, Representation Theory +12

Approximately Multiplicative Maps Between Banach Algebras

B. E. Johnson · Journal of the London Mathematical Society · 1988 · 137 citations

Modern Algebra, Commutative Algebra, Functional Analysis +1