{ "id": "math/0609755", "version": "v1", "published": "2006-09-27T13:15:38.000Z", "updated": "2006-09-27T13:15:38.000Z", "title": "On (n, k)-extendable graphs and induced subgraphs", "authors": [ "Guizhen Liu", "Qinglin Yu" ], "comment": "8 pages", "categories": [ "math.CO" ], "abstract": "Let $G$ be a graph with vertex set $V(G)$. Let $n$ and $k$ be non-negative integers such that $n + 2k \\leq |V(G)| - 2$ and $|V(G)| - n$ is even. If when deleting any $n$ vertices of $G$ the remaining subgraph contains a matching of $k$ edges and every $k$-matching can be extended to a 1-factor, then $G$ is called an $(n, k)-extendable graph. In this paper we present several results about $(n, k)$-extendable graphs and its subgraphs. In particular, we proved that if $G - V(e)$ is $(n, k)$-extendable graph for each $e \\in F$ (where $F$ is a fixed 1-factor in $G$), then $G$ is $(n, k)$-extendable graph.", "revisions": [ { "version": "v1", "updated": "2006-09-27T13:15:38.000Z" } ], "analyses": { "subjects": [ "05C70" ], "keywords": [ "induced subgraphs", "vertex set", "remaining subgraph contains" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......9755L" } } }