## Abstract Given a simple plane graph __G__, an edge‐face __k__‐coloring of __G__ is a function ϕ : __E__(__G__) ∪ __F__(G) → {1,…,__k__} such that, for any two adjacent or incident elements __a__, __b__ ∈ __E__(__G__) ∪ __F__(__G__), ϕ(__a__) ≠ ϕ(__b__). Let χ~e~(__G__), χ~ef~(__G__), and Δ(__G_
Simultaneously Colouring the Edges and Faces of Plane Graphs
✍ Scribed by Adrian O. Waller
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 345 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0095-8956
No coin nor oath required. For personal study only.
✦ Synopsis
In a simultaneous colouring of the edges and faces of a plane graph we colour edges and faces so that every two adjacent or incident pair of them receive different colours. In this paper we prove a conjecture of Mel'nikov which states that for this colouring every plane graph can be coloured with 2+3 colours, where 2 is the maximum degree of a vertex in the graph.
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