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On the Orlicz function estimations of the a-Davis--Wielandt radius in C*-algebra
Abstract
We present a systematic study of a-Davis--Wielandt radius estimates for elements in a unital C*-algebra through an Orlicz function approach. We derive novel bounds for the algebraic a-Davis--Wielandt radius and further obtain estimates for the classical algebraic Davis--Wielandt radius via polar decomposition and the Moore--Penrose inverse. The results obtained in this work extend, generalize, and unify a variety of established inequalities in the literature as special cases.
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BibTeX
@misc{bhattacharya2026orlicz,
title = {{On the Orlicz function estimations of the $a$-Davis--Wielandt radius in $C^*$-algebra}},
author = {Debarati Bhattacharya and Fuad Kittaneh and Arnab Patra},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.16652},
eprint = {2609.16652},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.16652},
}
RIS
TY - UNPB
TI - On the Orlicz function estimations of the a-Davis--Wielandt radius in C^*-algebra
AU - Debarati Bhattacharya
AU - Fuad Kittaneh
AU - Arnab Patra
PY - 2026
DA - 2026/09/15
PB - arXiv
DO - 10.48550/arxiv.2609.16652
UR - https://arxiv.org/abs/2609.16652
AB - We present a systematic study of a-Davis--Wielandt radius estimates for elements in a unital C^*-algebra through an Orlicz function approach. We derive novel bounds for the algebraic a-Davis--Wielandt radius and further obtain estimates for the classical algebraic Davis--Wielandt radius via polar decomposition and the Moore--Penrose inverse. The results obtained in this work extend, generalize, and unify a variety of established inequalities in the literature as special cases.
ER -