A characterization of graphs with no $K_{3,4}$ minor

Fuente: arXiv
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Main Author: Lo, On-Hei Solomon
Format: Preprint
Published: 2026
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author Lo, On-Hei Solomon
author_facet Lo, On-Hei Solomon
contents A complete structural characterization of graphs with no $K_{3,4}$ minor is obtained, and the following consequences are established. Every $4$-connected non-planar graph with at least seven vertices and minimum degree at least five contains both $K_{3,4}$ and $K_6^-$ as minors, thereby proving a conjecture of Kawarabayashi and Maharry in a strengthened form. Moreover, every $4$-connected graph with no $K_{3,4}$ minor is hamiltonian-connected, extending a theorem of Thomassen, and admits an embedding on the torus.
format Preprint
id arxiv_https___arxiv_org_abs_2603_27973
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A characterization of graphs with no $K_{3,4}$ minor
Lo, On-Hei Solomon
Combinatorics
A complete structural characterization of graphs with no $K_{3,4}$ minor is obtained, and the following consequences are established. Every $4$-connected non-planar graph with at least seven vertices and minimum degree at least five contains both $K_{3,4}$ and $K_6^-$ as minors, thereby proving a conjecture of Kawarabayashi and Maharry in a strengthened form. Moreover, every $4$-connected graph with no $K_{3,4}$ minor is hamiltonian-connected, extending a theorem of Thomassen, and admits an embedding on the torus.
title A characterization of graphs with no $K_{3,4}$ minor
topic Combinatorics
url https://arxiv.org/abs/2603.27973