English

Fluctuations in the logarithmic energy for zeros of random polynomials on the sphere

Probability 2024-10-14 v2 Mathematical Physics Classical Analysis and ODEs math.MP

Abstract

Smale's Seventh Problem asks for an efficient algorithm to generate a configuration of nn points on the sphere that nearly minimizes the logarithmic energy. As a candidate starting configuration for this problem, Armentano, Beltr\'an and Shub considered the set of points given by the stereographic projection of the roots of the random elliptic polynomial of degree nn and computed the expected logarithmic energy. We study the fluctuations of the logarithmic energy associated to this random configuration and prove a central limit theorem. Our approach shows that all cumulants of the logarithmic energy are asymptotically linear in nn, and hence the energy is well-concentrated on the scale of n\sqrt{n}.

Keywords

Cite

@article{arxiv.2304.02898,
  title  = {Fluctuations in the logarithmic energy for zeros of random polynomials on the sphere},
  author = {Marcus Michelen and Oren Yakir},
  journal= {arXiv preprint arXiv:2304.02898},
  year   = {2024}
}

Comments

43 pages; to appear in Probability Theory and Related Fields