{ "id": "1702.08739", "version": "v1", "published": "2017-02-28T11:02:44.000Z", "updated": "2017-02-28T11:02:44.000Z", "title": "On the reconstruction of polytopes", "authors": [ "Eran Nevo", "Guillermo Pineda-Villavicencio", "Julien Ugon", "David Yost" ], "comment": "14", "categories": [ "math.CO" ], "abstract": "Blind and Mani, and later Kalai, showed that the face lattice of a simple polytope is determined by its graph, namely its $1$-skeleton. Call a vertex of a $d$-polytope \\emph{nonsimple} if the number of edges incident to it is $>d$. We show that (1) the face lattice of any $d$-polytope with at most two nonsimple vertices is determined by its $1$-skeleton; (2) the face lattice of any $d$-polytope with at most $d-2$ nonsimple vertices is determined by its $2$-skeleton; and (3) for any $d>3$ there are two $d$-polytopes with $d-1$ nonsimple vertices, isomorphic $(d-3)$-skeleton and nonisomorphic face lattices. In particular, the result (1) is best possible for $4$-polytopes.", "revisions": [ { "version": "v1", "updated": "2017-02-28T11:02:44.000Z" } ], "analyses": { "subjects": [ "52B05", "52B12" ], "keywords": [ "nonsimple vertices", "reconstruction", "nonisomorphic face lattices", "simple polytope", "edges incident" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }