English

Parity of parts and excludant statistics in partitions

Number Theory 2026-03-17 v1

Abstract

In this paper, we study restricted excludant statistics depending on its parity in partitions where parts with same parity are distinct. Using qq-series transformations, we show that generating functions of these partition statistics are related to the quantum modular forms \s(q)\s(q), its companion σ(q)\sigma^*(q) introduced by Ramanujan, and v2(q)v_2(q), a Nahm-type sum, introduced by Andrews. Utilizing Tauberian method, we obtain asymptotics of such sequences.

Keywords

Cite

@article{arxiv.2603.13915,
  title  = {Parity of parts and excludant statistics in partitions},
  author = {Gargi Mukherjee},
  journal= {arXiv preprint arXiv:2603.13915},
  year   = {2026}
}