English

Operator inequalities via accretive transforms

Functional Analysis 2023-02-06 v2

Abstract

In this article, we employ certain properties of the transform CM,m(A)=(MIA)(AmI)C_{M,m}(A)=(MI-A^*)(A-mI) to obtain new inequalities for the bounded linear operator AA on a complex Hilbert space H\mathcal{H}. In particular, we obtain new relations among A,A,RA|A|,|A^*|,|\mathfrak{R}A| and IA|\mathfrak{I}A|. Further numerical radius inequalities that extend some known inequalities will be presented too.

Keywords

Cite

@article{arxiv.2204.07618,
  title  = {Operator inequalities via accretive transforms},
  author = {Mohammad Sababheh and Ibrahim Halil Gümüş and Hamid Reza Moradi},
  journal= {arXiv preprint arXiv:2204.07618},
  year   = {2023}
}

Comments

To appear in Hacettepe J. Math. Stat

R2 v1 2026-06-24T10:49:31.669Z