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arXiv · 1501.00821

Some Remarks on Rainbow Connectivity

Nina Kamčev·Michael Krivelevich·Benny Sudakov
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Abstract

An edge (vertex) coloured graph is rainbow-connected if there is a rainbow path between any two vertices, i.e. a path all of whose edges (internal vertices) carry distinct colours. Rainbow edge (vertex) connectivity of a graph $G$ is the smallest number of colours needed for a rainbow edge (vertex) colouring of $G$. In this paper we propose a very simple approach to studying rainbow connectivity in graphs. Using this idea, we give a unified proof of several known results, as well as some new ones.

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Nina Kamčev, Michael Krivelevich, Benny Sudakov. 2015-09-10. Some Remarks on Rainbow Connectivity. https://doi.org/10.1002/jgt.22003

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