English

Two enriched poset polytopes

Combinatorics 2024-03-08 v2

Abstract

Stanley introduced and studied two lattice polytopes, the order polytope and chain polytope, associated to a finite poset. Recently Ohsugi and Tsuchiya introduce an enriched version of them, called the enriched order polytope and enriched chain polytope. In this paper, we give a piecewise-linear bijection between these enriched poset polytopes, which is an enriched analogue of Stanley's transfer map and bijectively proves that they have the same Ehrhart polynomials. Also we construct explicitly unimodular triangulations of two enriched poset polytopes.

Keywords

Cite

@article{arxiv.2003.12271,
  title  = {Two enriched poset polytopes},
  author = {Soichi Okada and Akiyoshi Tsuchiya},
  journal= {arXiv preprint arXiv:2003.12271},
  year   = {2024}
}

Comments

27 pages, 3 figures

R2 v1 2026-06-23T14:28:58.493Z