English

Moderate deviations of suprema of Gaussian processes A cyclic approximation criterion

Probability 2026-01-22 v2

Abstract

We study moderate deviations of suprema of parametrized sequences of sample bounded Gaussian processes {Xx(t),tTx}\{X _x(t), t\in T _x\}, and first present recent sharp bounds in simple cases. In the almost periodic case, we prove an approximation theorem. We introduce a modulable diophantine approximation. Finally we study for general non-vanishing coefficient sequences, the behavior along lattices of almost periodic Gaussian polynomials with linearly independent frequencies, and use a lattice localized version of Kronecker's theorem.

Keywords

Cite

@article{arxiv.2504.11198,
  title  = {Moderate deviations of suprema of Gaussian processes A cyclic approximation criterion},
  author = {Michel Weber},
  journal= {arXiv preprint arXiv:2504.11198},
  year   = {2026}
}

Comments

Extended Introduction, with new related results. Some parts of the text revised and improved. (29 pages)