English

Partitions, Multiple Zeta Values and the q-bracket

Number Theory 2023-08-22 v2 Combinatorics

Abstract

We provide a framework for relating certain q-series defined by sums over partitions to multiple zeta values. In particular, we introduce a space of polynomial functions on partitions for which the associated q-series are q-analogues of multiple zeta values. By explicitly describing the (regularized) multiple zeta values one obtains as q1q\to 1, we extend previous results known in this area. Using this together with the fact that other families of functions on partitions, such as shifted symmetric functions, are elements in our space will then give relations among (q-analogues of) multiple zeta values. Conversely, we will show that relations among multiple zeta values can be `lifted' to the world of functions on partitions, which provides new examples of functions where the associated q-series are quasimodular.

Keywords

Cite

@article{arxiv.2203.09165,
  title  = {Partitions, Multiple Zeta Values and the q-bracket},
  author = {Henrik Bachmann and Jan-Willem van Ittersum},
  journal= {arXiv preprint arXiv:2203.09165},
  year   = {2023}
}

Comments

45 pages

R2 v1 2026-06-24T10:16:48.380Z