نتایج جستجو برای: k quasi paranormal

تعداد نتایج: 457839  

Journal: :Annals of Functional Analysis 2012

2012
SALAH MECHERI

An operator T ∈ B(H) is called quasi ∗-paranormal if ||T ∗Tx||2 ≤ ||T x|||Tx|| for all x ∈ H. If μ is an isolated point of the spectrum of T , then the Riesz idempotent E of T with respect to μ is defined by

Journal: :Journal of Mathematical Inequalities 2015

Journal: :Iraqi journal of science 2023

The new type of paranormal operators that have been defined in this study on the Hilbert space, is operators. In paper we introduce and discuss some properties concept such as: sum product two paranormal, power paranormal. Further, relationships between other kinds studied.

Journal: :Operators and Matrices 2010

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