English

An Ando-type dilation on right LCM monoids

Operator Algebras 2025-12-25 v1 Functional Analysis

Abstract

We establish an Ando-type dilation theorem for a pair of commuting contractions together with a representation of a right LCM monoid via either the Cartesian or the free product. We prove that if each individual contraction together with the monoid representation has *-regular dilation, then they can be dilated to commuting isometries and an isometric representation of the monoid. This extends an earlier result of Barik and Das.

Keywords

Cite

@article{arxiv.2512.20930,
  title  = {An Ando-type dilation on right LCM monoids},
  author = {Boyu Li and Mansi Suryawanshi},
  journal= {arXiv preprint arXiv:2512.20930},
  year   = {2025}
}

Comments

11 pages

R2 v1 2026-07-01T08:39:32.619Z