A stability theorem for multi-partite graphs

Fuente: arXiv
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Main Authors: Chen, Wanfang, Lu, Changhong, Yuan, Long-Tu
Format: Preprint
Published: 2022
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author Chen, Wanfang
Lu, Changhong
Yuan, Long-Tu
author_facet Chen, Wanfang
Lu, Changhong
Yuan, Long-Tu
contents The Erdős-Simonovits stability theorem is one of the most widely used theorems in extremal graph theory. We obtain an Erdős-Simonovits type stability theorem in multi-partite graphs. Different from the Erdős-Simonovits stability theorem, our stability theorem in multi-partite graphs says that if the number of edges of an $H$-free graph $G$ is close to the extremal graphs for $H$, then $G$ has a well-defined structure but may be far away to the extremal graphs for $H$. As an application, we solve a conjecture posed by Han and Zhao concerning the maximum number of edges in multi-partite graphs which does not contain vertex-disjoint copies of a clique
format Preprint
id arxiv_https___arxiv_org_abs_2208_13995
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle A stability theorem for multi-partite graphs
Chen, Wanfang
Lu, Changhong
Yuan, Long-Tu
Combinatorics
The Erdős-Simonovits stability theorem is one of the most widely used theorems in extremal graph theory. We obtain an Erdős-Simonovits type stability theorem in multi-partite graphs. Different from the Erdős-Simonovits stability theorem, our stability theorem in multi-partite graphs says that if the number of edges of an $H$-free graph $G$ is close to the extremal graphs for $H$, then $G$ has a well-defined structure but may be far away to the extremal graphs for $H$. As an application, we solve a conjecture posed by Han and Zhao concerning the maximum number of edges in multi-partite graphs which does not contain vertex-disjoint copies of a clique
title A stability theorem for multi-partite graphs
topic Combinatorics
url https://arxiv.org/abs/2208.13995