activity
20232026
most citedEhrhart theory of cosmological polytopes

1 citations · 2 across the 6 of their papers we have counts for

collaborators

7 papers

math.CO2026

Unimodular triangulations and Ehrhart theory for two families of Hermite normal form simplices

Justus Bruckamp, Jhon B. Caicedo, Martina Juhnke

We study regular unimodular triangulations, the integer decomposition property, and Ehrhart-theoretic properties of two families of Hermite normal form simplices. We first consider…

math.CO2026

Boundary -vectors and unimodular triangulations

Martina Juhnke, Steffen Schlie

We study the Ehrhart -polynomial of (the boundary of) a lattice polytope via regular unimodular triangulations and Gröbner degenerations of toric ideals. Our main result is…

math.CO2025★ 1 cited

Ehrhart theory of cosmological polytopes

Justus Bruckamp, Lina Goltermann, Martina Juhnke +2

The cosmological polytope of a graph was recently introduced to give a geometric approach to the computation of wavefunctions for cosmological models with associated Feynman di…

math.CO2024

Two-edge-connected (not necessarily spanning) subgraphs and polyhedra

Justus Bruckamp, Markus Chimani, Martina Juhnke

Given a graph , we study the -edge-connected subgraph polytope , which is given by the convex hull of the incidence vectors of all -edge-connected subgr…

math.CO2024

The -index of semi-Eulerian posets

Martina Juhnke-Kubitzke, José Alejandro Samper, Lorenzo Venturello

We generalize the definition of the -index of an Eulerian poset to the class of semi-Eulerian posets. For simplicial semi-Eulerian Buchsbaum posets, we show that all coefficien…

math.CO2023

On the connected blocks polytope

Justus Bruckamp, Markus Chimani, Martina Juhnke

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 polyto…