Nearly Hamilton cycles in sublinear expanders and applications

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Authors: Shoham Letzter, Abhishek Methuku, Benny Sudakov
Cited by: 2
References: 58

Abstract

Abstract We develop novel methods for constructing nearly Hamilton cycles in sublinear expanders with good regularity properties, as well as new techniques for finding such expanders in general graphs. These methods are of independent interest due to their potential for various applications to embedding problems in sparse graphs. In particular, using these tools, we make substantial progress towards a 20‐year‐old conjecture of Verstraëte, which asserts that for any given graph , nearly all vertices of every ‐regular graph can be covered by vertex‐disjoint ‐subdivisions. This significantly extends previous work on the conjecture by Kelmans, Mubayi and Sudakov, Alon and Kühn and Osthus. Additionally, we present applications of our methods to two other problems.

Fields of Study & Subjects

Limits and Structures in Graph Theory Commutative Algebra and Its Applications Advanced Graph Theory Research

Publication details

Journal / source
Journal of the London Mathematical Society
Publisher
Wiley
Volume
113
Issue
2
Publication date
1 February 2026
Language
EN