Some improvements of numerical radius inequalities of operators and operator matrices
نویسندگان
چکیده
منابع مشابه
Some improvements of numerical radius inequalities via Specht’s ratio
We obtain some inequalities related to the powers of numerical radius inequalities of Hilbert space operators. Some results that employ the Hermite-Hadamard inequality for vectors in normed linear spaces are also obtained. We improve and generalize some inequalities with respect to Specht's ratio. Among them, we show that, if $A, Bin mathcal{B(mathcal{H})}$ satisfy in some conditions, it follow...
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15 صفحه اولSome numerical radius inequalities with positive definite functions
Using several examples of positive definite functions, some inequalities for the numerical radius of matrices are investigated. Also, some open problems are stated.
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ژورنال
عنوان ژورنال: Linear and Multilinear Algebra
سال: 2020
ISSN: 0308-1087,1563-5139
DOI: 10.1080/03081087.2020.1781037