3 papers
math.CO2026
Order polytopes of generalized snake posets are -real-rooted
Benjamin Braun, Aryaman Jal
Order polytopes for generalized snake posets were recently studied by von Bell et al. (2022), and are known to be unimodularly equivalent to strength-one flow polytopes for acyclic…
math.CO2025
Generating functions of -chromatic polynomials
Matthias Beck, Benjamin Braun, Alvaro Cornejo
Given a graph and a linear form , Bajo et al. (2025) introduced the -chromatic polynomial $Ï_G^λ(q,n) := \sum q^{\sum_{v \in V} λ_v c(v)…
math.CO2025
Equatorial Flow Triangulations of Gorenstein Flow Polytopes
Benjamin Braun, Alvaro Cornejo
Generalizing work of Athanasiadis for the Birkhoff polytope and Reiner and Welker for order polytopes, in 2007 Bruns and Römer proved that any Gorenstein lattice polytope with a r…