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The analytic properties of Hoggatt triangles

Combinatorics 2026-07-02 v1

Abstract

The dd-Hoggatt triangle is a lower triangular matrix whose entries are given by specific minors of Pascal's triangle formed by consecutive dd rows and dd columns. The cases d=1,2,3d=1,2,3 correspond to Pascal's triangle, the Narayana triangle, and the Baxter triangle, respectively. In this paper, we present the infinite log-concavity of the row and column sequences, the log-concavity of the sequences along transversals, and the eventual log-convexity of the sequences along rays of the dd-Hoggatt triangle. In addition, we prove the asymptotic normality of the row sequences and total positivity of the dd-Hoggatt triangle.

Keywords

Cite

@article{arxiv.2607.01582,
  title  = {The analytic properties of Hoggatt triangles},
  author = {Jianxi Mao and Wenle Shi},
  journal= {arXiv preprint arXiv:2607.01582},
  year   = {2026}
}

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