{ "id": "1501.00893", "version": "v1", "published": "2014-12-31T17:52:54.000Z", "updated": "2014-12-31T17:52:54.000Z", "title": "What is the number of decompositions of torus into given number of regions by unions of geodesics?", "authors": [ "I. Shnurnikov" ], "categories": [ "math.CO" ], "abstract": "We prove some preliminary results concerning two questions of O.Karpenkov: (1) What is the number of decompositions of torus of dimension 2 into given number f of regions by unions of n geodesics? (2) On the plane there are n circles not in general position, every pair of cicles has at least one common point. What is the set of all possible numbers of regions?", "revisions": [ { "version": "v1", "updated": "2014-12-31T17:52:54.000Z" } ], "analyses": { "subjects": [ "52C35" ], "keywords": [ "decompositions", "general position", "common point", "preliminary results concerning" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }