On the connected blocks polytope

Fuente: arXiv
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Main Authors: Bruckamp, Justus, Chimani, Markus, Juhnke, Martina
Format: Preprint
Published: 2023
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_version_ 1866909635293741056
author Bruckamp, Justus
Chimani, Markus
Juhnke, Martina
author_facet Bruckamp, Justus
Chimani, Markus
Juhnke, Martina
contents In this paper, we study the connected blocks polytope, which, apart from its own merits, can be seen as the generalization of certain connectivity based or Eulerian subgraph polytopes. We provide a complete facet description of this polytope, characterize its edges and show that it is Hirsch. We also show that connected blocks polytopes admit a regular unimodular triangulation by constructing a squarefree Gröbner basis. In addition, we prove that the polytope is Gorenstein of index $2$ and that its $h^\ast$-vector is unimodal.
format Preprint
id arxiv_https___arxiv_org_abs_2304_06318
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle On the connected blocks polytope
Bruckamp, Justus
Chimani, Markus
Juhnke, Martina
Combinatorics
52B20, 52B12, 52B05, 05A15, 05C40
In this paper, we study the connected blocks polytope, which, apart from its own merits, can be seen as the generalization of certain connectivity based or Eulerian subgraph polytopes. We provide a complete facet description of this polytope, characterize its edges and show that it is Hirsch. We also show that connected blocks polytopes admit a regular unimodular triangulation by constructing a squarefree Gröbner basis. In addition, we prove that the polytope is Gorenstein of index $2$ and that its $h^\ast$-vector is unimodal.
title On the connected blocks polytope
topic Combinatorics
52B20, 52B12, 52B05, 05A15, 05C40
url https://arxiv.org/abs/2304.06318