Minimum Number of Monochromatic Subgraphs of a Random Graph

Fuente: arXiv
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Main Authors: Dandi, Yatin, Gamarnik, David, Zhu, Haodong
Format: Preprint
Published: 2026
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author Dandi, Yatin
Gamarnik, David
Zhu, Haodong
author_facet Dandi, Yatin
Gamarnik, David
Zhu, Haodong
contents We consider the problem of minimizing the number of monochromatic subgraphs of a random graph, when each node of the host graph is assigned one of the two colors. Using a recently discovered contiguity between appearance of strictly balanced subgraphs $F$ in a random graph, and random hypergraphs where copies of $F$ are generated independently, we show that the minimum value converges to a limit, when the expected number of copies of $F$ is linear in the number of nodes $|V|$. Furthermore, using the connections with mean field spin glass models, we obtain an asymptotic expression for this limit as the normalized expected number of copies of $F$ and the size of $F$ diverge to infinity.
format Preprint
id arxiv_https___arxiv_org_abs_2602_03774
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Minimum Number of Monochromatic Subgraphs of a Random Graph
Dandi, Yatin
Gamarnik, David
Zhu, Haodong
Combinatorics
Probability
We consider the problem of minimizing the number of monochromatic subgraphs of a random graph, when each node of the host graph is assigned one of the two colors. Using a recently discovered contiguity between appearance of strictly balanced subgraphs $F$ in a random graph, and random hypergraphs where copies of $F$ are generated independently, we show that the minimum value converges to a limit, when the expected number of copies of $F$ is linear in the number of nodes $|V|$. Furthermore, using the connections with mean field spin glass models, we obtain an asymptotic expression for this limit as the normalized expected number of copies of $F$ and the size of $F$ diverge to infinity.
title Minimum Number of Monochromatic Subgraphs of a Random Graph
topic Combinatorics
Probability
url https://arxiv.org/abs/2602.03774