{ "id": "1702.07342", "version": "v1", "published": "2017-02-23T18:58:38.000Z", "updated": "2017-02-23T18:58:38.000Z", "title": "On the inducibility of cycles", "authors": [ "Dan Hefetz", "Mykhaylo Tyomkyn" ], "categories": [ "math.CO" ], "abstract": "In 1975 Pippenger and Golumbic proved that any graph on $n$ vertices admits at most $2e(n/k)^k$ induced $k$-cycles. This bound is larger by a multiplicative factor of $2e$ than the simple lower bound obtained by a blow-up construction. Pippenger and Golumbic conjectured that the latter lower bound is essentially tight. In the present paper we establish a better upper bound of $(128e/81) \\cdot (n/k)^k$. This constitutes the first progress towards proving the aforementioned conjecture since it was posed.", "revisions": [ { "version": "v1", "updated": "2017-02-23T18:58:38.000Z" } ], "analyses": { "keywords": [ "inducibility", "simple lower bound", "better upper bound", "vertices admits", "first progress" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }