English

Partition Eisenstein series and semi-modular forms

Number Theory 2021-12-02 v4 Combinatorics

Abstract

We identify a class of "semi-modular" forms invariant on special subgroups of GL2(Z)GL_2(\mathbb Z), which includes classical modular forms together with complementary classes of functions that are also nice in a specific sense. We define an Eisenstein-like series summed over integer partitions, and use it to construct families of semi-modular forms.

Keywords

Cite

@article{arxiv.2103.06239,
  title  = {Partition Eisenstein series and semi-modular forms},
  author = {Matthew Just and Robert Schneider},
  journal= {arXiv preprint arXiv:2103.06239},
  year   = {2021}
}

Comments

8 pages, 2 figures, published in Research in Number Theory (2021)

R2 v1 2026-06-23T23:58:19.473Z