The A-model with mutually equal model parameters can lead to a Hilbert space model
Functional Analysis
2020-08-19 v1
Abstract
It is known that the A-model for higher order singular perturbations can be considered as a Hilbert space model if the model parameters are mutually distinct, and that it is necessarily a Pontryagin space model if otherwise. In this note we demonstrate that the A-model with mutually equal model parameters can nonetheless lead to a Hilbert space model if the extensions in the model space are instead described by suitable linear relations.
Keywords
Cite
@article{arxiv.2008.07780,
title = {The A-model with mutually equal model parameters can lead to a Hilbert space model},
author = {Rytis Jursenas},
journal= {arXiv preprint arXiv:2008.07780},
year = {2020}
}