A new lower bound for the harmonious chromatic number
نویسندگان
چکیده
A harmonious colouring of a simple graph G is a proper vertex colouring such that 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 obtain a new lower bound for the harmonious chromatic number of general graphs, in terms of the independence number of the graph, generalizing results of Moser [2].
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ورودعنوان ژورنال:
- Australasian J. Combinatorics
دوره 29 شماره
صفحات -
تاریخ انتشار 2004