English

Fourier Dimension Estimates for Sets of Exact Approximation Order: The Badly-Approximable Case

Number Theory 2023-09-13 v1 Classical Analysis and ODEs

Abstract

We show for decreasing, positive approximation functions ψ\psi such that τ=limqlogψ(q)logq<13+738\tau = \lim_{q \to \infty} \frac{\log \psi(q)}{\log q} < \frac{13 + \sqrt{73}}{8} and such that q2ψ(q)0q^2 \psi(q) \to 0 that the set Exact(ψ)\text{Exact}(\psi) of numbers approximable to the exact order ψ\psi has positive Fourier dimension. This implies that the set Exact(ψ)\text{Exact}(\psi) contains normal numbers.

Keywords

Cite

@article{arxiv.2309.05851,
  title  = {Fourier Dimension Estimates for Sets of Exact Approximation Order: The Badly-Approximable Case},
  author = {Robert Fraser and Reuben Wheeler},
  journal= {arXiv preprint arXiv:2309.05851},
  year   = {2023}
}

Comments

37 Pages