Document Type : Review paper


Department of Mathematics, Lorestan University, Khorramabad, Iran


‎In this paper‎, ‎we give an explicit formula for the Moore-Penrose inverse of $W$‎, ‎denoted by $W^{\dag}$‎, ‎on $L^2(\Sigma)$‎. ‎As an application‎, ‎we give a characterization for some operator classes that are weaker than $p$-hyponormal with $W^{\dag}$‎. ‎Moreover‎, ‎we give specific examples illustrating these classes‎.


Main Subjects

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