Long geodesics in subgraphs of the cube

Imre Leader; Eoin Long

doi:10.1016/j.disc.2014.02.013

Long geodesics in subgraphs of the cube

Imre Leader, Eoin Long

Mathematics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

146 Downloads (Pure)

Abstract

We show that any subgraph of the hypercube Q_n of average degree d contains a geodesic of length d, where by geodesic we mean a shortest path in Q_n. This result, which is best possible, strengthens a theorem of Feder and Subi. It is also related to the ‘antipodal colourings’ conjecture of Norine.

Original language	English
Pages (from-to)	29-33
Number of pages	5
Journal	Discrete Mathematics
Volume	326
Early online date	18 Mar 2014
DOIs	https://doi.org/10.1016/j.disc.2014.02.013
Publication status	Published - 6 Jul 2014

Keywords

Geodesic
hypercube
antipodal colouring

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Cite this

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title = "Long geodesics in subgraphs of the cube",

abstract = "We show that any subgraph of the hypercube Qn of average degree d contains a geodesic of length d, where by geodesic we mean a shortest path in Qn. This result, which is best possible, strengthens a theorem of Feder and Subi. It is also related to the {\textquoteleft}antipodal colourings{\textquoteright} conjecture of Norine.",

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AB - We show that any subgraph of the hypercube Qn of average degree d contains a geodesic of length d, where by geodesic we mean a shortest path in Qn. This result, which is best possible, strengthens a theorem of Feder and Subi. It is also related to the ‘antipodal colourings’ conjecture of Norine.

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KW - hypercube

KW - antipodal colouring

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DO - 10.1016/j.disc.2014.02.013

M3 - Article

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VL - 326

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JO - Discrete Mathematics

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Long geodesics in subgraphs of the cube

Abstract

Keywords

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