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JOURNALS // Doklady Rossijskoj Akademii Nauk. Mathematika, Informatika, Processy Upravlenia // Archive

Dokl. RAN. Math. Inf. Proc. Upr., 2021 Volume 501, Pages 26–30 (Mi danma217)

This article is cited in 4 papers

MATHEMATICS

On the maximal cut in a random hypergraph

P. A. Zakharova, D. A. Shabanovabc

a National Research University "Higher School of Economics", Moscow, Russia
b Moscow Institute of Physics and Technology (National Research University), Dolgoprudnyi, Moscow oblast, Russia
c Lomonosov Moscow State University, Moscow, Russia

Abstract: This paper deals with the problem of finding the max-cut for random hypergraphs. We consider the classical binomial model $H(n,k,p)$ of a random $k$-uniform hypergraph on $n$ vertices with probability $p=p(n)$. The main results generalize previously known facts for the graph case and show that in the sparse case (when $\displaystyle p=cn/\binom{n}{k}$ for some fixed $c=c(k)>0$ independent of $n)$ there exists $\gamma(c,k,q)>0$ such that the ratio of the maximal cut of $H(n,k,p)$ to the number of vertices converges in probability to $\gamma(c,k,q)>0$. Moreover, we obtain some bounds for the value of $\gamma(c,k,q)$.

Keywords: hypergraphs, random hypergraphs, cut of a hypergraph, interpolation method, optimization problem.

UDC: 519.174

Presented: A. N. Shiryaev
Received: 11.08.2021
Revised: 17.08.2021
Accepted: 08.09.2021

DOI: 10.31857/S2686954321060187


 English version:
Doklady Mathematics, 2021, 104:3, 336–339

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© Steklov Math. Inst. of RAS, 2024