64 citations · 577 across the 60 of their papers we have counts for
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Refinements of generalized Euclidean operator radius inequalities of 2-tuple operators
Suvendu Jana, Pintu Bhunia, Kallol Paul
We develop several upper and lower bounds for the -Euclidean operator radius of -tuple operators admitting -adjoint, and show that they refine the earlier related bounds.…
Estimations of Euclidean operator radius
Pintu Bhunia, Suvendu Jana, Kallol Paul
We develop several Euclidean operator radius bounds for the product of two -tuple operators using positivity criteria of a block matrix whose entries are -tuple o…
Euclidean operator radius and numerical radius inequalities
Suvendu Jana, Pintu Bhunia, Kallol Paul
Let be a bounded linear operator on a complex Hilbert space We obtain various lower and upper bounds for the numerical radius of by developing the Euclidean…
Berezin number and Berezin norm inequalities for operator matrices
Pintu Bhunia, Anirban Sen, Somdatta Barik +1
We establish new upper bounds for Berezin number and Berezin norm of operator matrices, which are refinements of the existing bounds. Among other bounds, we prove that if $A=[A_{ij…
Power numerical radius inequalities from an extension of Buzano's inequality
Pintu Bhunia
Several numerical radius inequalities are studied by developing an extension of the Buzano's inequality. It is shown that if is a bounded linear operator on a complex Hilbert s…
Euclidean operator radius inequalities of -tuple operators and operator matrices
Suvendu Jana, Pintu Bhunia, Kallol Paul
In this paper, we develop several Euclidean operator radius inequalities of -tuple operators, as well as the sum and the product of -tuple operators. Also, we obtain a power…
Sharper bounds for the numerical radius of $ \lowercase{n}\times \lowercase{n}$ operator matrices
Pintu Bhunia
Let be an operator matrix, where each is a bounded linear operator on a complex Hilbert space. Among other numerical r…
Improved bounds for the numerical radius via polar decomposition of operators
Pintu Bhunia
Using the polar decomposition of a bounded linear operator defined on a complex Hilbert space, we obtain several numerical radius inequalities of the operator , which genera…
Numerical radius inequalities of bounded linear operators and -normal operators
Pintu Bhunia
We obtain various upper bounds for the numerical radius of a bounded linear operator defined on a complex Hilbert space , by developing the upper bounds for…
Numerical radius inequalities and estimation of zeros of polynomials
Suvendu Jana, Pintu Bhunia, Kallol Paul
Let be a bounded linear operator defined on a complex Hilbert space and let be the positive square root of . Among other refinements of the well known num…