A generalisation of Menger's theorem in bidirected graphs

Fuente: arXiv
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Autori principali: Ghorbani, Ebrahim, Nickel, Jana Katharina, Reich, Florian
Natura: Preprint
Pubblicazione: 2025
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author Ghorbani, Ebrahim
Nickel, Jana Katharina
Reich, Florian
author_facet Ghorbani, Ebrahim
Nickel, Jana Katharina
Reich, Florian
contents Menger's theorem - the maximum number of vertex-disjoint $X$-$Y$ paths is equal to the minimum size of an $X$-$Y$ separator - is generally not true in bidirected graphs. We prove that Menger's theorem holds true if we take the nontrivial $X$-$X$ paths and the nontrivial $Y$-$Y$ paths into account.
format Preprint
id arxiv_https___arxiv_org_abs_2511_12283
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A generalisation of Menger's theorem in bidirected graphs
Ghorbani, Ebrahim
Nickel, Jana Katharina
Reich, Florian
Combinatorics
05C40, 05C38, 05C20
Menger's theorem - the maximum number of vertex-disjoint $X$-$Y$ paths is equal to the minimum size of an $X$-$Y$ separator - is generally not true in bidirected graphs. We prove that Menger's theorem holds true if we take the nontrivial $X$-$X$ paths and the nontrivial $Y$-$Y$ paths into account.
title A generalisation of Menger's theorem in bidirected graphs
topic Combinatorics
05C40, 05C38, 05C20
url https://arxiv.org/abs/2511.12283