{ "id": "1801.03413", "version": "v1", "published": "2018-01-10T15:08:46.000Z", "updated": "2018-01-10T15:08:46.000Z", "title": "Characterizing subclasses of cover-incomparability graphs by forbidden subposets", "authors": [ "Jan Bok", "Jana Maxová" ], "categories": [ "math.CO", "cs.DM" ], "abstract": "In this paper we demonstrate that several theorems from \\cite{Bres} and \\cite{Bres3} do not hold as they are stated. These are the theorems regarding forbidden subposet characterizations of certain classes of cover- incomparability graphs. In this paper we correct a mistake in the main theorem of \\cite{Bres}, reformulate the corresponding statements and present corrected proofs. We further characterize posets whose cover-incomparability graphs are interval graphs and unit interval graphs.", "revisions": [ { "version": "v1", "updated": "2018-01-10T15:08:46.000Z" } ], "analyses": { "keywords": [ "cover-incomparability graphs", "characterizing subclasses", "theorems regarding forbidden subposet characterizations", "unit interval graphs", "main theorem" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }