English

Solution of the Ovals problem

Functional Analysis 2025-04-22 v2

Abstract

In this paper, we bring a complete solution to the Ovals problem, as formulated in [3] and [24].

Keywords

Cite

@article{arxiv.2503.02431,
  title  = {Solution of the Ovals problem},
  author = {Yacine Chitour and Jochen Denzler and Frédéric Jean and Emmanuel Trélat},
  journal= {arXiv preprint arXiv:2503.02431},
  year   = {2025}
}

Comments

We made a mistake in our proposed solution to the Ovals problem. The erroneous claim is that the operator A_T, used in the proof of Lemma 2.4.1, is selfadjoint. But this fact is wrong, as kindly pointed out to us by Matthias Baur, Rupert L. Frank, Larry Read and Timo Weidl, whom we warmly thank. At the moment, unfortunately, this mistake seems fatal to us, so the Ovals conjecture remains open

R2 v1 2026-06-28T22:06:02.531Z