2 citations · 2 across the 3 of their papers we have counts for
Showing 2019Show all
2 papers · 1 filter
math.FA2019
Davis-Wielandt shells of semi-Hilbertian space operators and its applications
Kais Feki, Sid Ahmed Ould Ahmed Mahmoud
In this paper we generalize the concept of Davis-Wielandt shell of operators on a Hilbert space when a semi-inner product induced by a positive operator is considered. Moreover…
math.GM2019★ 2 cited
On (N,M)-a-normal And (N, M)-a-quasinormal Semi- Hilbert Space Operators
Samir Al Mohammady, Sid Ahmed Ould Beinane, Sid Ahmed O. Ahmed Mahmoud
The purpose of the paper is to introduce and study a new class of operators on semi-Hilbertian spaces i.e.; spaces generated by positive semidefinite sesquilinear forms. Let H be a…