An extension of several essential numerical radius inequalities of 2x2 off-diagonal operator matrices
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Date
2020
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Springer
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Abstract
In this work, we provide upper and lower bounds for the numerical radius of an nxn off-diagonal operator matrix, which extends some results by Abu-Omar and Kittaneh (Stud. Math. 216:69-75, 2013; Linear Algebra Appl. 468:18-26, 2015; Rocky Mt. J. Math. 45(4):1055-1065, 2015), and Paul and Bag (Appl. Math. Comput. 222:2731-2943, 2013).
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Keywords
Numerical Radius, Off-Diagonal Part, Operator Matrix, 47A30, 47A12, 47A63, 47B33
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Citation
Al-Dolat, Mohammed...at all (2020). "An extension of several essential numerical radius inequalities of 2x2 off-diagonal operator matrices", Advances in Difference Equations, Vol. 2020, No. 1.
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Q1
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Volume
2020
Issue
1