{ "id": "1708.02482", "version": "v1", "published": "2017-08-08T13:32:37.000Z", "updated": "2017-08-08T13:32:37.000Z", "title": "A simple permutoassociahedron", "authors": [ "Djordje Baralic", "Jelena Ivanovic", "Zoran Petric" ], "comment": "22 pages", "categories": [ "math.CO" ], "abstract": "In the early 1990s, a family of combinatorial CW-complexes named permutoassociahedra was introduced by Kapranov, and it was realized by Reiner and Ziegler as a family of convex polytopes. The polytopes in this family are \"hybrids\" of permutohedra and associahedra. Since permutohedra and associahedra are simple, it is natural to search for a family of simple permutoassociahedra, which is still adequate for a topological proof of Mac Lane's coherence. This paper presents such a family.", "revisions": [ { "version": "v1", "updated": "2017-08-08T13:32:37.000Z" } ], "analyses": { "subjects": [ "52B11", "18D10", "52B12", "51M20" ], "keywords": [ "simple permutoassociahedron", "mac lanes coherence", "combinatorial cw-complexes named permutoassociahedra", "convex polytopes", "permutohedra" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable" } } }