{ "id": "2102.09100", "version": "v1", "published": "2021-02-18T01:17:58.000Z", "updated": "2021-02-18T01:17:58.000Z", "title": "Regularity method and large deviation principles for the Erdős--Rényi hypergraph", "authors": [ "Nicholas A. Cook", "Amir Dembo", "Huy Tuan Pham" ], "comment": "37 pages, 1 figure", "categories": [ "math.PR", "math.CO" ], "abstract": "We develop a quantitative large deviations theory for random Bernoulli tensors. The large deviation principles rest on a decomposition theorem for arbitrary tensors outside a set of tiny measure, in terms of a novel family of norms generalizing the cut norm. Combined with associated counting lemmas, these yield sharp asymptotics for upper tails of homomorphism counts in the $r$-uniform Erd\\H{o}s--R\\'enyi hypergraph for any fixed $r\\ge 2$, generalizing and improving on previous results for the Erd\\H{o}s--R\\'enyi graph ($r=2$). The theory is sufficiently quantitative to allow the density of the hypergraph to vanish at a polynomial rate, and additionally yields (joint) upper and lower tail asymptotics for other nonlinear functionals of interest.", "revisions": [ { "version": "v1", "updated": "2021-02-18T01:17:58.000Z" } ], "analyses": { "subjects": [ "60F10", "60C05", "60B20", "05C65" ], "keywords": [ "erdős-rényi hypergraph", "regularity method", "large deviation principles rest", "random bernoulli tensors", "lower tail asymptotics" ], "note": { "typesetting": "TeX", "pages": 37, "language": "en", "license": "arXiv", "status": "editable" } } }