English

Sum of short exponential sums with prime numbers

Number Theory 2025-10-13 v1

Abstract

For sufficiently large integers KK, xx, yy, and qq satisfying Ky<xK \le y < x, where f(u)=αun+αn1un1++α1uf(u) = \alpha u^n + \alpha_{n-1}u^{n-1} + \ldots + \alpha_1 u is a polynomial of degree nn with real coefficients, nn is a fixed positive integer, α\alpha is a real number such that αaq1q2\left|\alpha - \frac{a}{q}\right| \le \frac{1}{q^2}, (a,q)=1(a, q) = 1, q1q \ge 1 and L=lnx\mathscr{L} = \ln x, an estimate of the form k=1Kxy<pxe(kf(p))Ky(1q+1y+qKyn+1K2n1)2n1Ln22n+1, \sum_{k=1}^K \left| \sum_{x - y < p \le x} e(kf(p)) \right| \ll K y \left( \frac{1}{q} + \frac{1}{y} + \frac{q}{K y^n} + \frac{1}{K^{2^{n-1}}} \right)^{2^{-n-1}} {\mathscr{L}}^{\frac{n^2}{2^{n+1}}}, is obtained, which represents a strengthening and generalization of the corresponding estimate of I.M.Vinogradov. Keywords: short exponential sum of G.Weyl with prime numbers, uniform distribution modulo one, nontrivial estimate, fractional part. Bibliography: 18 references.

Keywords

Cite

@article{arxiv.2510.09102,
  title  = {Sum of short exponential sums with prime numbers},
  author = {Firuz Rakhmonov},
  journal= {arXiv preprint arXiv:2510.09102},
  year   = {2025}
}