English

Relative Entropy and Tsallis Entropy of two Accretive Operators

Functional Analysis 2021-07-23 v1 Operator Algebras

Abstract

Let AA and BB be two accretive operators. We first introduce the weighted geometric mean of AA and BB together with some related properties. Afterwards, we define the relative entropy as well as the Tsallis entropy of AA and BB. The present definitions and their related results extend those already introduced in the literature for positive invertible operators.

Keywords

Cite

@article{arxiv.1705.07042,
  title  = {Relative Entropy and Tsallis Entropy of two Accretive Operators},
  author = {M. Raïssouli and M. S. Moslehian and S. Furuichi},
  journal= {arXiv preprint arXiv:1705.07042},
  year   = {2021}
}

Comments

7 pages, to appear in C. R. Math. Acad. Sci. Paris