English

The Kotake-Narasimhan Theorem in general ultradifferentiable classes

Analysis of PDEs 2025-01-23 v2

Abstract

We prove a Kotake-Narasimhan type theorem in general ultradifferentiable classes given by weight matrices. In doing so we simultaneously recover and partially generalize the known results for classes given by weight sequences and weight functions. In particular, we obtain a sharp Kotake-Narasimhan theorem for Beurling classes.

Keywords

Cite

@article{arxiv.2212.11905,
  title  = {The Kotake-Narasimhan Theorem in general ultradifferentiable classes},
  author = {Stefan Fürdös},
  journal= {arXiv preprint arXiv:2212.11905},
  year   = {2025}
}

Comments

Revised version

R2 v1 2026-06-28T07:49:22.606Z