Graph Theory: 64. Vertex Colouring

In this video we define a (proper) vertex colouring of a graph and the chromatic number of a graph. We discuss some basic facts about the chromatic number as well as how a k-colouring partitions the vertex set into k independent sets (check out video #50 for more about independent sets). -- Bits of Graph Theory by Dr. Sarada Herke. Related videos:    • Graph Theory: 04. Families of Graphs   - Graph Theory: 04. Families of Graphs    • Graph Theory: 50. Maximum vs Maximal   - Graph Theory: 50. Maximum vs Maximal For quick videos about Math tips and useful facts, check out my other channel "Spoonful of Maths" -    / spoonfulofmaths   Video Production by: Giuseppe Geracitano (goo.gl/O8TURb)