Results 131 to 138 of about 141 (138)

A remark on the approximate spectra of operators

Proceedings of the Japan Academy Series A: Mathematical Sciences, 1972
Ritsuo Nakamoto
exaly  

On the Weyl spectrum II

Illinois Journal of Mathematics, 1977
exaly  

Fractional powers of operators

Journal of the Mathematical Society of Japan, 1988
exaly  

On normal approximate spectrum, VI

Proceedings of the Japan Academy Series A: Mathematical Sciences, 1973
Masatoshi Fujii
exaly  

Limits of strongly irreducible operators, and the Riesz decomposition theorem.

Michigan Mathematical Journal, 1990
Domingo A Herrero
exaly  

Ranges of hyponormal operators

Illinois Journal of Mathematics, 1977
exaly  

$L$-ideals and numerical range preservation

Illinois Journal of Mathematics, 1977
exaly  

Orthogonality and the numerical range

Journal of the Mathematical Society of Japan, 1975
exaly