{ "id": "1803.02809", "version": "v1", "published": "2018-03-07T18:36:42.000Z", "updated": "2018-03-07T18:36:42.000Z", "title": "The size of the giant component in random hypergraphs: a short proof", "authors": [ "Oliver Cooley", "Mihyun Kang", "Christoph Koch" ], "comment": "12 pages + 4 pages appendix", "categories": [ "math.CO", "math.PR" ], "abstract": "We consider connected components in $k$-uniform hypergraphs for the following notion of connectedness: given integers $k\\ge 2$ and $1\\le j \\le k-1$, two $j$-sets (of vertices) lie in the same $j$-component if there is a sequence of edges from one to the other such that consecutive edges intersect in at least $j$ vertices. We prove that certain collections of $j$-sets constructed during a breadth-first search process on $j$-components in a random $k$-uniform hypergraph are reasonably regularly distributed with high probability. We use this property to provide a short proof of the asymptotic size of the giant $j$-component shortly after it appears.", "revisions": [ { "version": "v1", "updated": "2018-03-07T18:36:42.000Z" } ], "analyses": { "subjects": [ "05C65", "05C80" ], "keywords": [ "short proof", "giant component", "random hypergraphs", "uniform hypergraph", "breadth-first search process" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }