Operators and Matrices · Volume 13, Issue 3

On the classes of (n,m)-power D-normal and (n,m)-power D-quasi-normal operators

13-51 Pages 705-732 DOI 10.7153/oam-2019-13-51

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Authors

Sid Ahmed Ould Ahmed Mahmoud Ould Beinane Sid Ahmed

Keywords

(m,n)-power normal (m,n)-power quasi-normal n-power D-normal n-power D-quasi-normal

Subject classes

47B15 47B20 47A15