English

$H^\infty$ Functional Calculus for a Commuting Pair of $\text{Ritt}_{\text{E}}$ Operators

Functional Analysis 2026-04-22 v3

Abstract

In this article, we develop a framework for the joint functional calculus of commuting pair of RittE\text{Ritt}_{\text{E}} operators on Banach spaces. We establish a transfer principle that relates the bounded holomorphic functional calculus for pair of RittE\text{Ritt}_{\text{E}} operators to that of their associated sectorial counterparts. In addition, we prove a joint dilation theorem for commuting tuples of RittE\text{Ritt}_{\text{E}} operators on a broad class of Banach spaces. As a key application, we obtain an equivalent set of criteria on LpL^p-spaces for 1<p<1<p< \infty that determine when a commuting pair of RittE\text{Ritt}_{\text{E}} operators admits a joint bounded functional calculus.

Keywords

Cite

@article{arxiv.2505.05788,
  title  = {$H^\infty$ Functional Calculus for a Commuting Pair of $\text{Ritt}_{\text{E}}$ Operators},
  author = {Suman Mondal and Subhajit Palai and Samya Kumar Ray},
  journal= {arXiv preprint arXiv:2505.05788},
  year   = {2026}
}

Comments

25 pages, 1 figure, Accepted for publication in Integral Equation and Operator Theory and title has been slightly changed.Version 2 uploaded incorrect files; corrected in this version

R2 v1 2026-06-28T23:26:47.728Z