{ "id": "1810.04746", "version": "v1", "published": "2018-10-10T20:47:16.000Z", "updated": "2018-10-10T20:47:16.000Z", "title": "Stability and Erdős--Stone type results for $F$-free graphs with a fixed number of edges", "authors": [ "Jamie Radcliffe", "Andrew Uzzell" ], "comment": "15 pages, 1 figure", "categories": [ "math.CO" ], "abstract": "A fundamental problem of extremal graph theory is to ask, 'What is the maximum number of edges in an $F$-free graph on $n$ vertices?' Recently Alon and Shikhelman proposed a more general, subgraph counting, version of this question. They considered the question of determining the maximum number of copies of a fixed graph $T$ in an $F$-free graph on $n$ vertices. In this more general context, where we are no longer counting edges, it is also natural to ask what is the maximum number of copies of $T$ in an $F$-free graph with $m$ edges and no restriction on the number of vertices. Frohmader, in a different context, determined the answer when $T$ and $F$ are both complete graphs. We prove results for this problem analogous to the Erd\\H{o}s--Stone theorem, the Erd\\H{o}s--Simonovits theorem, and the stability theorem of Erd\\H{o}s--Simonovits.", "revisions": [ { "version": "v1", "updated": "2018-10-10T20:47:16.000Z" } ], "analyses": { "keywords": [ "free graph", "erdős-stone type results", "fixed number", "maximum number", "extremal graph theory" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }