The Australian Journal of Mathematical Analysis and Applications


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ISSN 1449-5910  

 

Paper Information

Paper Title:

On operators for which T2≥-T*2

Author(s):

Messaoud Guesba1 and Mostefa Nadir2

1Department of Mathematics,
University of El Oued 39000,
Algeria
E-mail: guesbamessaoud2@gmail.com

 
2Department of Mathematics,
University of Msila 28000,
Algeria
E-mail: mostefanadir@yahoo.fr

Abstract:

In this paper we introduce the new class of operators for which T2 -T*2 acting on a complex Hilbert space H. We give some basic properties of these operators. we study the relation between the class and some other well known classes of operators acting on H.

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