Eran Assaf

Computing Classical Modular Forms for Arbitrary Congruence Subgroups

2020 · arXiv (Cornell University)

In this paper, we prove the existence of an efficient algorithm for the computation of $q$-expansions of modular forms of weight $k$ and level $Γ$, where $Γ\subseteq SL_{2}({\mathbb{Z}})$ is an arbitrary congruence subgroup. We also …