2 papers
math.CO2026
The number of edges of a symmetric edge polytope
Giulia Codenotti, Roberto Riccardi, Lorenzo Venturello
The symmetric edge polytope of a simple graph is a lattice polytope defined as the convex hull of a subset of the type A roots corresponding to the edges of the graph. In this arti…
math.CO2025
Eulerian posets and -polynomials
Luis Ferroni, Roberto Riccardi
Let be a finite partially ordered set. In a recent series of works, Proudfoot introduced the notion of -polynomials associated with -kernels, providing a unified framewor…