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On the decomposition of random hypergraphs

机译:关于随机超图的分解

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For an r-uniform hypergraph H, let f (H) be the minimum number of complete r-partite r-uniform subhypergraphs of H whose edge sets partition the edge set of H. For a graph G, f (G) is the bipartition number of G which was introduced by Graham and Pollak in 1971. In 1988, Erdds conjectured that if G is an element of G(n, 1/2), then with high probability f (G) = n-alpha(G), where a(G) is the independence number of G. This conjecture and its related problems have received a lot of attention recently. In this paper, we study the value of f (H) for a typical r-uniform hypergraph H. More precisely, we prove that if (log n)(2.001)/n = p = 1/2 and H is an element of H-(r)(n,p), then with high probability f (H) = (1 - pi(K-r((r-1))) o(1)) ((n) (r-1))where pi(K-r((r-1))) is the Turan density of K-r((r-1)) (C) 2017 Elsevier Inc. All rights reserved.
机译:对于R均匀的超图H,让F(H)是H的完整R-Partione R-均匀次高表的最小数量,其边缘设置分隔边缘组H.对于图G,F(g)是双分部 1971年由格雷厄姆和科拉克引入的G.在1988年,ERDD指示,如果G是G(n,1/2)的元素,则具有高概率f(g)= n-alpha(g), 其中a(g)是G.本猜想及其相关问题最近受到了很多关注的。 在本文中,我们研究了F(h)的典型r成均匀编程H的值更准确地说,如果(log n)(2.001)/ n& = p = 1/2和h 是H-(R)(n,p)的元素,然后具有高概率f(h)=(1 - pi(kr((r-1)))O(1))((n)(r- 1))其中Pi(kr((r-1))是kr的菌((r-1))(c)2017年elsevier Inc.保留所有权利。

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