{ "id": "2003.12701", "version": "v1", "published": "2020-03-28T04:18:11.000Z", "updated": "2020-03-28T04:18:11.000Z", "title": "Extremal graphs of the $k$-th power of paths", "authors": [ "Long-Tu Yuan" ], "comment": "9pages", "categories": [ "math.CO" ], "abstract": "An extremal graph for a given graph $H$ is a graph with maximum number of edges on fixed number of vertices without containing a copy of $H$. The $k$-th power of a path is a graph obtained from a path and joining all pair of vertices of the path with distance less than $k$. Applying a deep theorem of Simonovits, we characterize the extremal graphs of the $k$-th power of paths. This settles a conjecture posed by Xiao, Katona, Xiao and Zamora in a stronger form.", "revisions": [ { "version": "v1", "updated": "2020-03-28T04:18:11.000Z" } ], "analyses": { "subjects": [ "05C35" ], "keywords": [ "extremal graph", "th power", "maximum number", "stronger form", "deep theorem" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }