3 papers
math.CO2023
Chromatic numbers for facet colouring of some generalised associahedra
Djordje Baralic, Jelena S. Ivanovic, Zoran Petric
The chromatic number related to a colouring of facets of certain classes of generalised associahedra is studied. The exact values are obtained for permutohedra, associahedra and si…
math.CO2019
Geometrical Realisations of the Simple Permutoassociahedron by Minkowski sums
Jelena Ivanovic
This paper offers a geometrical realisation of simple permutoassociahedra, which has significant importance serving as a topological proof of Mac Lane's coherence. We introduce a f…
math.CO2017
Syntactic aspects of hypergraph polytopes
Pierre-Louis Curien, Jovana Obradovic, Jelena Ivanovic
This paper introduces an inductively defined tree notation for all the faces of polytopes arising from a simplex by truncations. This notation allows us to view inclusion of faces…