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On Class (Q )
(International Journal of Mathematics And its Applications, 2020-11-12)
Class (Q) operators was introduced and studied by Jibril in (quote). In this paper , we introduce and study the “cousins”
to this class, namely class (Q∗). An operator T ∈ B(H) is said to belong to class (Q∗) if T
∗2T
2 ...