English

A Unified Reduction for Hypergeometric and q-Hypergeometric Creative Telescoping

Symbolic Computation 2025-07-29 v2

Abstract

We adapt the theory of normal and special polynomials from symbolic integration to the summation setting, and then built up a general framework embracing both the usual shift case and the qq-shift case. In the context of this general framework, we develop a unified reduction algorithm, and subsequently a creative telescoping algorithm, applicable to both hypergeometric terms and their qq-analogues. Our algorithms allow to split up the usual shift case and the qq-shift case only when it is really necessary, and thus instantly reveal the intrinsic differences between these two cases. Computational experiments are also provided.

Keywords

Cite

@article{arxiv.2501.03837,
  title  = {A Unified Reduction for Hypergeometric and q-Hypergeometric Creative Telescoping},
  author = {Shaoshi Chen and Hao Du and Yiman Gao and Hui Huang and Ziming Li},
  journal= {arXiv preprint arXiv:2501.03837},
  year   = {2025}
}
R2 v1 2026-06-28T20:58:49.342Z