English

Upper bounds of numerical radius and $a$-numerical radius in $\mathcal{C}^*$-algebra setting using Orlicz functions

Operator Algebras 2024-11-08 v1 Functional Analysis

Abstract

In this paper, several significant upper bounds for the numerical radius and aa-numerical radius of an element in a C\mathcal{C}^*-algebra are obtained using Orlicz functions. Many well-known results are obtained from our findings, depending on specific choices of Orlicz functions.

Keywords

Cite

@article{arxiv.2411.04875,
  title  = {Upper bounds of numerical radius and $a$-numerical radius in $\mathcal{C}^*$-algebra setting using Orlicz functions},
  author = {Saikat Mahapatra and Riddhick Birbonshi and Arnab Patra},
  journal= {arXiv preprint arXiv:2411.04875},
  year   = {2024}
}