Many faces of symmetric edge polytopes

A D'Alì, E Delucchi, M Michałek - arXiv preprint arXiv:1910.05193, 2019 - arxiv.org
Symmetric edge polytopes are a class of lattice polytopes constructed from finite simple
graphs. In the present paper we highlight their connections to the Kuramoto synchronization …

Examples and counterexamples in Ehrhart theory

L Ferroni, A Higashitani - EMS Surveys in Mathematical Sciences, 2024 - ems.press
This article provides a comprehensive exposition about inequalities that the coefficients of
Ehrhart polynomials and h-polynomials satisfy under various assumptions. We pay …

On the gamma-vector of symmetric edge polytopes

A D'AlÌ, M Juhnke-Kubitzke, D Köhne… - SIAM Journal on Discrete …, 2023 - SIAM
We study-vectors associated with-vectors of symmetric edge polytopes both from a
deterministic and a probabilistic point of view. On the deterministic side, we prove …

Facets and facet subgraphs of symmetric edge polytopes

T Chen, R Davis, E Korchevskaia - Discrete Applied Mathematics, 2023 - Elsevier
Symmetric edge polytopes, aka PV-type adjacency polytopes, associated with undirected
graphs have been defined and studied in several seemingly independent areas including …

On a generalization of symmetric edge polytopes to regular matroids

A D'Alì, M Juhnke-Kubitzke… - International Mathematics …, 2024 - academic.oup.com
Starting from any finite simple graph, one can build a reflexive polytope known as a
symmetric edge polytope. The first goal of this paper is to show that symmetric edge …

The -Polynomials of Locally Anti-Blocking Lattice Polytopes and Their -Positivity

H Ohsugi, A Tsuchiya - Discrete & Computational Geometry, 2021 - Springer
A lattice polytope P ⊂ R^ d P⊂ R d is called a locally anti-blocking polytope if for any closed
orthant\mathbb R^ d_ ε R ε d in R^ d R d, P ∩ R^ d_ ε P∩ R ε d is unimodularly equivalent …

SYMMETRIC DECOMPOSITIONS, TRIANGULATIONS AND REAL‐ROOTEDNESS

CA Athanasiadis, E Tzanaki - Mathematika, 2021 - Wiley Online Library
Polynomials which afford nonnegative, real‐rooted symmetric decompositions have been
investigated recently in algebraic, enumerative and geometric combinatorics. Brändén and …

Ehrhart theory of symmetric edge polytopes via ribbon structures

T Kálmán, L Tóthmérész - arXiv preprint arXiv:2201.10501, 2022 - arxiv.org
Using a ribbon structure of the graph, we construct a dissection of the symmetric edge
polytope of a graph into unimodular simplices. Our dissection is shellable, and one can …

Symmetric edge polytopes and matching generating polynomials

H Ohsugi, A Tsuchiya - arXiv preprint arXiv:2008.08621, 2020 - arxiv.org
Symmetric edge polytopes $\mathcal {A} _G $ of type A are lattice polytopes arising from the
root system $ A_n $ and finite simple graphs $ G $. There is a connection between …

Likelihood geometry of reflexive polytopes

C Améndola, J Oldekop - Algebraic Statistics, 2024 - msp.org
We study the problem of maximum likelihood (ML) estimation for statistical models defined
by reflexive polytopes. Our focus is on the maximum likelihood degree of these models as …