English

Relaxed commutant lifting: existence of a unique solution

Functional Analysis 2008-08-20 v1

Abstract

In this paper we present necessary and sufficient conditions for the existence of a unique solution to the relaxed commutant lifting problem. The obtained conditions are more complicated than those for the classical commutant lifting setting, and earlier obtained sufficient conditions turn out not to be necessary conditions. It is also shown that these conditions simplify in certain special cases.

Cite

@article{arxiv.0808.2479,
  title  = {Relaxed commutant lifting: existence of a unique solution},
  author = {S. ter Horst},
  journal= {arXiv preprint arXiv:0808.2479},
  year   = {2008}
}

Comments

10 pages

R2 v1 2026-06-21T11:11:38.695Z