Planarity conjecture for quasi-transitive graphs quasi-isometric to minor-excluded graphs

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A graph Γ\Gamma is minor-excluded if some finite graph is not a minor of Γ\Gamma. Two graphs are quasi-isometric when their large-scale metric spaces are equivalent up to multiplicative and additive distortion. Planarity conjecture for minor-excluded quasi-isometry classes. Let Γ\Gamma be a connected, locally finite, quasi-transitive graph, and suppose Γ\Gamma is quasi-isometric to a minor-excluded graph. Then Γ\Gamma is quasi-isometric to a planar graph. The quasi-transitivity assumption is necessary, and this conjecture would imply the preceding accessibility conjecture; its verification for one-ended graphs would make the two conjectures equivalent.

References

Primary source

Joseph Paul MacManus, “Accessibility, planar graphs, and quasi-isometries”, arXiv:2310.15242 (2026).

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