English

A heuristic guide to evaluating triple-sums

Number Theory 2023-04-25 v2

Abstract

Using a heuristic that relates Appell--Lerch functions to divergent partial theta functions one can expand Hecke-type double-sums in terms of Appell--Lerch functions. We give examples where the heuristic can be used as a guide to evaluate analogous triple-sums in terms of Appell--Lerch functions or false theta functions.

Keywords

Cite

@article{arxiv.2012.05102,
  title  = {A heuristic guide to evaluating triple-sums},
  author = {Eric T. Mortenson},
  journal= {arXiv preprint arXiv:2012.05102},
  year   = {2023}
}

Comments

26 pages. Submitted to Hardy Ramanujan Journal for special volume in honour of Ramanujan

R2 v1 2026-06-23T20:50:50.426Z