{ "id": "math/0505415", "version": "v1", "published": "2005-05-19T13:39:36.000Z", "updated": "2005-05-19T13:39:36.000Z", "title": "Induced Subgraphs of Bounded Degree and Bounded Treewidth", "authors": [ "Prosenjit Bose", "Vida Dujmovic", "David R. Wood" ], "comment": "A short version of this paper will appear in the proceedings of WG 2005 (Lecture Notes in Computer Science, Springer)", "journal": "Contributions to Discrete Mathematics, 1(1):88-105, 2006.", "categories": [ "math.CO" ], "abstract": "We prove that for all $0\\leq t\\leq k$ and $d\\geq 2k$, every graph $G$ with treewidth at most $k$ has a `large' induced subgraph $H$, where $H$ has treewidth at most $t$ and every vertex in $H$ has degree at most $d$ in $G$. The order of $H$ depends on $t$, $k$, $d$, and the order of $G$. With $t=k$, we obtain large sets of bounded degree vertices. With $t=0$, we obtain large independent sets of bounded degree. In both these cases, our bounds on the order of $H$ are tight. For bounded degree independent sets in trees, we characterise the extremal graphs. Finally, we prove that an interval graph with maximum clique size $k$ has a maximum independent set in which every vertex has degree at most $2k$.", "revisions": [ { "version": "v1", "updated": "2005-05-19T13:39:36.000Z" } ], "analyses": { "subjects": [ "05C69" ], "keywords": [ "induced subgraph", "bounded treewidth", "maximum independent set", "bounded degree independent sets", "large independent sets" ], "tags": [ "journal article", "lecture notes" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......5415B" } } }