English

Horofunctions of infinite Sierpinski polygon graphs

Combinatorics 2025-08-01 v1 Metric Geometry

Abstract

Generalizing works of D'Angeli and Donno, we describe, starting from an infinite sequence over rr letters with r4ir \neq 4i and iNi \in \mathbb{N}, a sequence of pointed finite graphs. We study the pointed Gromov-Hausdorff limit graphs giving a description of isomorphim classes in terms of dihedral groups and providing insights on the horofunction boundaries in terms of Busemann and non-Busemann points.

Keywords

Cite

@article{arxiv.2507.23681,
  title  = {Horofunctions of infinite Sierpinski polygon graphs},
  author = {Daniele D'Angeli and Francesco Matucci and Davide Perego and Emanuele Rodaro},
  journal= {arXiv preprint arXiv:2507.23681},
  year   = {2025}
}

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16 pages