Quasi-unitary equivalence and generalised norm resolvent convergence
Spectral Theory
2025-03-31 v1
Abstract
The purpose of this article is to give a short introduction to the concept of quasi-unitary equivalence of quadratic forms and its consequences. In particular, we improve an estimate concerning the transitivity of quasi-unitary equivalence for forms. We illustrate the abstract setting by two classes of examples.
Cite
@article{arxiv.2503.22611,
title = {Quasi-unitary equivalence and generalised norm resolvent convergence},
author = {Olaf Post and Jan Simmer},
journal= {arXiv preprint arXiv:2503.22611},
year = {2025}
}
Comments
20 pages, this is a submission of an already published article, reference list is as at time of publication