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Electronic Journal of Combinatorics
Article . 2024 . Peer-reviewed
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On an Induced Version of Menger's Theorem

On an induced version of Menger's theorem
Authors: Kevin Hendrey; Sergey Norin; Raphael Steiner; Jérémie Turcotte;

On an Induced Version of Menger's Theorem

Abstract

We prove Menger-type results in which the obtained paths are pairwise non-adjacent, both for graphs of bounded maximum degree and, more generally, for graphs excluding a topological minor. More precisely, we show the existence of a constant $C$, depending only on the maximum degree or on the forbidden topological minor, such that for any pair of sets of vertices $X,Y$ and any positive integer $k$, there exists either $k$ pairwise non-adjacent $X\text{-}Y$-paths, or a set of fewer than $Ck$ vertices which separates $X$ and $Y$. We further show better bounds in the subcubic case, and in particular obtain a tight result for two paths using a computer-assisted proof.

Country
Switzerland
Keywords

Connectivity, Extremal problems in graph theory, Graph minors, Vertex degrees, induced matching, Coloring of graphs and hypergraphs, Combinatorics, 05C38 (Primary) 05C15, 05C40, 05C83 (Secondary), FOS: Mathematics, bounded degree graphs, Combinatorics (math.CO), strong chromatic index, Paths and cycles

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green
gold