{ "id": "2404.02669", "version": "v1", "published": "2024-04-03T12:06:05.000Z", "updated": "2024-04-03T12:06:05.000Z", "title": "Rays of the deformation cones of graphical zonotopes", "authors": [ "Germain Poullot" ], "comment": "19 pages, 7 figures, 1 table", "categories": [ "math.CO" ], "abstract": "In this paper, we compute a triangulation of certain faces of the submodular cone. More precisely, graphical zonotopes are generalized permutahedra, and hence are associated to faces of the submodular cone. We give a triangulation of these faces for graphs without induced complete sub-graph on 4 vertices. This grants us access to the rays of these faces: Minkowski indecomposable deformations of these graphical zonotopes are segments and triangles. Besides, computer experiments lead to examples of graphs without induced complete sub-graph on 5 vertices, whose graphical zonotopes have high dimensional Minkowski indecomposable deformations.", "revisions": [ { "version": "v1", "updated": "2024-04-03T12:06:05.000Z" } ], "analyses": { "subjects": [ "52B05", "52B11", "52B12", "05C20" ], "keywords": [ "graphical zonotopes", "deformation cones", "induced complete sub-graph", "submodular cone", "high dimensional minkowski indecomposable deformations" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }