Estimates for short character sums evaluated at homogeneous polynomials
Number Theory
2025-12-23 v2
Abstract
Let be a prime. We prove bounds on short Dirichlet character sums evaluated at a class of homogeneous polynomials in arbitrary dimensions. In every dimension, this bound is nontrivial for sums over boxes with side lengths as short as for any . Our methods capitalize on the relationship between characters mod and characters over finite field extensions as well as bounds on the multiplicative energy of sets in products of finite fields.
Keywords
Cite
@article{arxiv.2501.12325,
title = {Estimates for short character sums evaluated at homogeneous polynomials},
author = {Rena Chu},
journal= {arXiv preprint arXiv:2501.12325},
year = {2025}
}
Comments
47 pages; v2 aligns with published version