Articles written in Proceedings – Mathematical Sciences
Volume 123 Issue 2 May 2013 pp 167-175
The general Randic index Rα(G) is the sum of the weight d(u)d(v)α over all edges uv of a graph G, where α is a real number and d(u) is the degree of the vertex u of G. In this paper, for any real number α=0, the first three minimum general Randic indices among trees are determined, and the corresponding extremal trees are characterized.
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