The bunkbed conjecture is false

N Nikita Gladkov (Department of Mathematics) I Igor Pak (Department of Mathematics) A Aleksandr Zimin (Department of Mathematics)

Abstract

We give an explicit counterexample to the bunkbed conjecture introduced by Kasteleyn in 1985. The counterexample is given by a planar graph on 7,222 vertices and is built on the recent work of Hollom (2024).

Article Details

Volume / Issue Vol. 122, Issue 24
Published June 17, 2025
ISSN 0027-8424
Publisher National Academy of Sciences

Authors (3)

N

Nikita Gladkov

Department of Mathematics

I

Igor Pak

Department of Mathematics

A

Aleksandr Zimin

Department of Mathematics