activity
20102026
most citedNumerical radius inequalities and its applications in estimation of zeros of polynomials

64 citations · 883 across the 94 of their papers we have counts for

collaborators
Showing 2023Show all

6 papers · 1 filter

math.FA2023★ 5 cited

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.…

math.FA2023

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…

math.FA2023

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…

math.FA2023★ 17 cited

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…

math.FA2023

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…

math.FA2023★ 8 cited

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…