Pintu Bhunia, Kallol Paul, Rajkumar Nayak
Published 2019-08-13Version 1
We present new upper and lower bounds for the numerical radius of a bounded linear operator defined on a complex Hilbert space, which improve on the existing bounds. We also obtain some upper and lower bounds for the numerical radius of operator matrices and illustrate with numerical examples that these bounds are better than the existing bounds.
On $\mathbb{A}$-numerical radius inequalities of operators and operator matrices
Refinements of norm and numerical radius inequalities
On inequalities for A-numerical radius of operators
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