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From the 1 of 6 linked papers with an AI index.

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20242026
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6 papers

math.FA2026

-Berezin sectorial operators with applications to -Berezin number inequalities and -Berezin ranges

Saikat Mahapatra, Subhadip Halder, Riddhick Birbonshi +2

In this paper, we introduce a new class of operators, called -Berezin sectorial operators, as an extension of the class of -sectorial operators. By presenting examples on the…

math.FA2026

Improved upper bounds for the Berezin numbers of operators on reproducing kernel Hilbert spaces

Riddhick Birbonshi, Sumon Ghosh, Fuad Kittaneh +2

The paper derives new upper bounds for the Berezin numbers of bounded linear operators on reproducing kernel Hilbert spaces using interpolation paths of symmetric means and Orlicz…

math.FA2026

Improved Bounds for numerical radius and -numerical radius in -algebras

Saikat Mahapatra, Arobinda Ghosh, Riddhick Birbonshi

In this article, we derive several significant upper bounds for the numerical radius and -numerical radius of an element in a -algebra by improving inequalities for posit…

math.FA2026

An introduction of Berezin sectorial operators and its application to Berezin number inequalities

Saikat Mahapatra, Sweta Mukherjee, Anirban Sen +2

We introduce a new class of operators, called Berezin sectorial operators, which generalizes classical sectorial operators. We provide examples on the Hardy-Hilbert space showing t…

math.FA2025

Berezin number and Berezin norm inequalities via Moore-Penrose inverse

Saikat Mahapatra, Anirban Sen, Riddhick Birbonshi +1

In this article, we establish the Berezin number and Berezin norm inequalities for bounded linear operators on a reproducing kernel Hilbert space using the Moore-Penrose inverse. T…

math.OA2024

Upper bounds of numerical radius and -numerical radius in -algebra setting using Orlicz functions

Saikat Mahapatra, Riddhick Birbonshi, Arnab Patra

In this paper, several significant upper bounds for the numerical radius and -numerical radius of an element in a -algebra are obtained using Orlicz functions. Ma…