Browsing by Author "Al-Dolat, Mohammed"

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    An Extension of Several Essential Numerical Radius Inequalities of 2x2 Off-Diagonal Operator Matrices
    (Springer, 2020) Jaradat, Imad; Baleanu, Dumitru; Al-Dolat, Mohammed
    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).