64 citations · 164 across the 7 of their papers we have counts for
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math.FA2020★ 23 cited
Bounds for the Davis-Wielandt radius of bounded linear operators
Pintu Bhunia, Aniket Bhanja, Santanu Bag +1
We obtain upper and lower bounds for the Davis-Wielandt radius of bounded linear operators defined on a complex Hilbert space, which improve on the existing ones. We also obtain bo…
math.FA2020
On the numerical range of operators on some special Banach spaces
Kalidas Mandal, Aniket Bhanja, Santanu Bag +1
The numerical range of a bounded linear operator on a complex Banach space need not be convex unlike that on a Hilbert space. The aim of this paper is to study operators on $ \…
math.FA2020★ 3 cited
Estimations of zeros of a polynomial using numerical radius inequalities
Pintu Bhunia, Santanu Bag, Raj Kumar Nayak +1
We present new bounds for the numerical radius of bounded linear operators and operator matrices. We apply upper bounds for the numerical radius to the Frobenius compan…