English

Twisted second moment of primitive cubic L-functions

Number Theory 2025-06-29 v1

Abstract

We investigate the mean value of the twisted second moment of primitive cubic LL-functions over Fq(T)\mathbb{F}_q(T) in the non-Kummer setting. Specifically, we study the sum \begin{equation*} \sum_{\substack{\chi\ primitive\ cubic\\ genus(\chi)=g}}\chi(h_1)\bar{\chi}(h_2)|L_q(\frac{1}{2}, \chi)|^2, \end{equation*} where Lq(s,χ)L_q(s,\chi) denotes the LL-function associated with primitive cubic character χ\chi. Employing a double Dirichlet series approach, we establish an error term of size

Keywords

Cite

@article{arxiv.2506.14656,
  title  = {Twisted second moment of primitive cubic L-functions},
  author = {Ziwei Hong and Zhiyong Zheng},
  journal= {arXiv preprint arXiv:2506.14656},
  year   = {2025}
}

Comments

arXiv admin note: text overlap with arXiv: 2503.17228

R2 v1 2026-07-01T03:22:08.609Z