English

Character sums of Division polynomials twisted by multiplicative functions

Number Theory 2026-04-01 v2

Abstract

Let EE be an elliptic curve over the finite field Fp\mathbb{F}_p, and PE(Fp)P \in E(\mathbb{F}_p) be an Fp\mathbb{F}_p-rational point. We obtain nontrivial estimates for multiplicative character sums associated with the division polynomials ψn(P)\psi_n(P) twisted by several multiplicative functions, where ψn(P)\psi_n(P) denotes the nn-th division polynomial evaluated at PP.

Keywords

Cite

@article{arxiv.2508.03988,
  title  = {Character sums of Division polynomials twisted by multiplicative functions},
  author = {Subham Bhakta},
  journal= {arXiv preprint arXiv:2508.03988},
  year   = {2026}
}

Comments

21 pages, incorporated some comments, more comments are welcome!