English

Period-like polynomials for $L$-series associated with half-integral weight cusp forms

Number Theory 2024-10-11 v3

Abstract

Given the L-series of a half-integral weight cusp form, we construct a cohomology class with coefficients in a finite dimensional vector space in a way that parallels the Eichler cohomology in the integral weight case. We also define a lift of half-integral weight cusp forms to integral weight modular forms that is compatible with the LL-series of the respective forms.

Keywords

Cite

@article{arxiv.2307.10863,
  title  = {Period-like polynomials for $L$-series associated with half-integral weight cusp forms},
  author = {James Branch and Nikolaos Diamantis and Wissam Raji and Larry Rolen},
  journal= {arXiv preprint arXiv:2307.10863},
  year   = {2024}
}
R2 v1 2026-06-28T11:35:54.628Z