Upper bounds for harmonious colorings
نویسندگان
چکیده
A harmonious colouring of a simple graph G is a colouring of the vertices such that adjacent vertices receive distinct colours and each pair of colours appears together on at most one edge. The harmonious chromatic number h(G) is the least number of colours in such a colouring. We improve an upper bound on h(G) due to Lee and Mitchem, and give upper bounds for related quantities.
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ورودعنوان ژورنال:
- Journal of Graph Theory
دوره 15 شماره
صفحات -
تاریخ انتشار 1991