Results 121 to 130 of about 141 (138)

On the numerical range of an operator

Proceedings of the Japan Academy Series A: Mathematical Sciences, 1971
Takayuki Furuta, Ritsuo Nakamoto
exaly  

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

Illinois Journal of Mathematics, 1981
Lawrence A Fialkow
exaly  

Spectra of slant Toeplitz operators with continuous symbols.

Michigan Mathematical Journal, 1997
Mark C Ho
exaly  

The Hardy class of Koenigs maps.

Michigan Mathematical Journal, 1997
Pietro Poggi-Corradini
exaly  

Completely positive maps on C∗-algebras and the left matricial spectra of an operator

Duke Mathematical Journal, 1976
Norberto Salinas
exaly  

On normal approximate spectrum, II

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

On the Norm of Idempotents in $C^*$ -Algebras

Rocky Mountain Journal of Mathematics, 2004
V Rakocevic
exaly  

On normal approximate spectrum

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

The reducing essential matricial spectra of an operator

Duke Mathematical Journal, 1975
Carl Pearcy, Norberto Salinas
exaly  

Applications of a commutation formula

Duke Mathematical Journal, 1978
exaly