English

A sufficient condition for $(\alpha, \beta)$ Somos $4$ Hankel determinants

Combinatorics 2023-06-16 v2

Abstract

By using Sulanke-Xin continued fractions method, Xin proposed a recursion system to solve the Somos 4 Hankel determinant conjecture. We find Xin's recursion system indeed give a sufficient condition for (α,β)(\alpha, \beta) Somos 44 sequences. This allows us to prove 4 conjectures of Barry on (α,β)(\alpha, \beta) Somos 44 sequences in a unified way.

Cite

@article{arxiv.2305.05995,
  title  = {A sufficient condition for $(\alpha, \beta)$ Somos $4$ Hankel determinants},
  author = {Ying Wang and Zihao Zhang},
  journal= {arXiv preprint arXiv:2305.05995},
  year   = {2023}
}
R2 v1 2026-06-28T10:30:50.706Z