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Box Representations of Embedded Graphs

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Abstract

A d -box is the Cartesian product of d intervals of \(\mathbb {R}\) and a d -box representation of a graph G is a representation of G as the intersection graph of a set of d-boxes in \(\mathbb {R}^d\). It was proved by Thomassen in 1986 that every planar graph has a 3-box representation. In this paper we prove that every graph embedded in a fixed orientable surface, without short non-contractible cycles, has a 5-box representation. This directly implies that there is a function f, such that in every graph of genus g, a set of at most f(g) vertices can be removed so that the resulting graph has a 5-box representation. We show that such a function f can be made linear in g. Finally, we prove that for any proper minor-closed class \(\mathcal {F}\), there is a constant \(c(\mathcal {F})\) such that every graph of \(\mathcal {F}\) without cycles of length less than \(c(\mathcal {F})\) has a 3-box representation, which is best possible.

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Acknowledgements

The author is partially supported by ANR Project STINT (anr-13-bs02-0007), and LabEx PERSYVAL-Lab (anr-11-labx-0025).

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Correspondence to Louis Esperet.

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Editor in Charge: János Pach

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Esperet, L. Box Representations of Embedded Graphs. Discrete Comput Geom 57, 590–606 (2017). https://doi.org/10.1007/s00454-016-9837-8

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  • DOI: https://doi.org/10.1007/s00454-016-9837-8

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