The Colouring Number
Péter Komjáth · Proceedings of the London Mathematical Society · 1987
In this paper undirected, loopless graphs will be considered.If G is a graph, V(G) denotes the set of vertices.Whenever V(G) is ordered, put G(x) = 1460244x, 1987, 1, Downloaded from https://londmathsoc.onlinelibrary.