{ "id": "1409.6701", "version": "v1", "published": "2014-09-23T19:13:46.000Z", "updated": "2014-09-23T19:13:46.000Z", "title": "Lattice 3-polytopes with five lattice points", "authors": [ "Mónica Blanco", "Francisco Santos" ], "comment": "19 pages, 11 figures", "categories": [ "math.CO" ], "abstract": "We work out the complete classification of lattice $3$-polytopes with exactly $5$ lattice points. We first show that for each $n$ there is only a finite number of (equivalence classes of) $3$-polytopes of lattice width larger than one. Since polytopes of width one are easy to classify, we concentrate on an exhaustive classification of those of width larger than one. For $n=4$, all empty tetrahedra have width one (White). For $n=5$ we show that there are exactly 9 different polytopes of width $2$, and none of larger width. Eight of them are the clean tetrahedra previously classified by Kasprzyk and (independently) Reznick.", "revisions": [ { "version": "v1", "updated": "2014-09-23T19:13:46.000Z" } ], "analyses": { "subjects": [ "52B10", "52B20" ], "keywords": [ "lattice points", "lattice width larger", "empty tetrahedra", "finite number", "clean tetrahedra" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1409.6701B" } } }