Abstract
One of the major areas within graph theory is that of colorings, namely region colorings of graphs embedded on surfaces, vertex colorings and edge colorings. Of all these colorings, the most studied and most popular graph colorings are the vertex colorings. These colorings came about through coloring the regions of planar graphs, that is, through coloring the regions of maps. In this chapter, we review some fundamental concepts and results on vertex and edge colorings that will be encountered as we proceed. In addition, we review some facts concerning degrees of vertices in graphs, outdegrees and indegrees of vertices in digraphs as well as Eulerian graphs and digraphs. Finally, a fundamental fact from discrete mathematics is mentioned that will be encountered often. We refer to the book [15] for graph theory notation and terminology not described here.
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Zhang, P. (2016). Introduction. In: A Kaleidoscopic View of Graph Colorings. SpringerBriefs in Mathematics. Springer, Cham. https://doi.org/10.1007/978-3-319-30518-9_1
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DOI: https://doi.org/10.1007/978-3-319-30518-9_1
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