English

The joint spectral radius is pointwise H\"older continuous

Dynamical Systems 2025-02-26 v2 Optimization and Control Spectral Theory

Abstract

We show that the joint spectral radius is pointwise H\"older continuous. In addition, the joint spectral radius is locally H\"older continuous for ε\varepsilon-inflations. In the two-dimensional case, local H\"older continuity holds on the matrix sets with positive joint spectral radius.

Keywords

Cite

@article{arxiv.2311.18633,
  title  = {The joint spectral radius is pointwise H\"older continuous},
  author = {Jeremias Epperlein and Fabian Wirth},
  journal= {arXiv preprint arXiv:2311.18633},
  year   = {2025}
}

Comments

37 pages. Some typos and a small mistake in the proof of Proposition 13 fixed

R2 v1 2026-06-28T13:37:06.921Z