English

How to generalize $D$-stability

Spectral Theory 2018-06-06 v2

Abstract

In this paper, we introduce the following concept which generalizes known definitions of multiplicative and additive DD-stability, Schur DD-stability, HH-stability, DD-hyperbolicity and many others. Given a subset DC{\mathfrak D} \subset {\mathbb C}, a matrix class GMn×n{\mathcal G} \subset {\mathcal M}^{n \times n} and a binary operation \circ on Mn×n{\mathcal M}^{n \times n}, an n×nn \times n matrix A\mathbf A is called (D,G,)({\mathfrak D}, {\mathcal G}, \circ)-stable if σ(GA)D\sigma({\mathbf G}\circ {\mathbf A}) \subset {\mathfrak D} for any GG{\mathbf G} \in {\mathcal G}. Such an approach allows us to unite several well-known matrix problems and to consider common ways of their analysis. Here, we make a survey of existing results and open problems on different types of stability, study basic properties of (D,G,)({\mathfrak D}, {\mathcal G}, \circ)-stable matrices and relations between different (D,G,)({\mathfrak D}, {\mathcal G}, \circ)-stability classes.

Keywords

Cite

@article{arxiv.1805.05558,
  title  = {How to generalize $D$-stability},
  author = {Olga Y. Kushel},
  journal= {arXiv preprint arXiv:1805.05558},
  year   = {2018}
}

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Short version

R2 v1 2026-06-23T01:55:12.808Z