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Geeks for Geeks: Graph Coloring|set 1 (Introduction and Applications)
Graph coloring problem is to assign colors to certain elements of a graph subject to certain constraints. This source looks at different applications of graph coloring.
Wolfram Research
Wolfram Math World: Edge Coloring
This site displays a description and diagrams dealing with edge coloring.
Wolfram Research
Wolfram Math World: Vertex Coloring
You will find a definition and diagrams dealing with vertex coloring.
