Results 121 to 130 of about 142 (138)

Some remarks on the ?-spectrum

Complex Variables and Elliptic Equations, 2013
Fabrizio Colombo, Irène Sabadini
exaly  

A note on the range of the operator $X \rightarrow AX-XB$

Illinois Journal of Mathematics, 1981
Lawrence A Fialkow
exaly  

A remark on the approximate spectra of operators

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

On normal approximate spectrum, IV

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

Uniform ascent and descent of bounded operators

Journal of the Mathematical Society of Japan, 1982
Sandy Grabiner
exaly  

The Hardy class of Koenigs maps.

Michigan Mathematical Journal, 1997
Pietro Poggi-Corradini
exaly  

Hankel and Toeplitz operators on the Fock space.

Michigan Mathematical Journal, 1992
Karel Stroethoff
exaly  

On the Weyl spectrum II

Illinois Journal of Mathematics, 1977
exaly  

On normal approximate spectrum, III

Proceedings of the Japan Academy Series A: Mathematical Sciences, 1972
Masatoshi Fujii
exaly  

Spectra of slant Toeplitz operators with continuous symbols.

Michigan Mathematical Journal, 1997
Mark C Ho
exaly