English

New estimates for numerical radius in $C^*$-algebras

Operator Algebras 2024-05-28 v1 Functional Analysis

Abstract

Several numerical radius inequalities in the framework of CC^*-algebras are proved in this paper. These results, which are based on an extension of Buzano inequality for elements in a pre-Hilbert CC^*-module, generalize earlier numerical radius inequalities.

Keywords

Cite

@article{arxiv.2405.16212,
  title  = {New estimates for numerical radius in $C^*$-algebras},
  author = {Ali Zamani},
  journal= {arXiv preprint arXiv:2405.16212},
  year   = {2024}
}
R2 v1 2026-06-28T16:40:09.984Z