منابع مشابه
Trees with Smaller Harmonic Indices
The harmonic index H (G) of a graph G is defined as the sum of the weights 2 du+dv of all edges uv of G, where du denotes the degree of a vertex u in G. In this paper, we determine (i) the trees of order n and m pendant vertices with the second smallest harmonic index, (ii) the trees of order n and diameter r with the smallest and the second smallest harmonic indices, and (iii) the trees of ord...
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ژورنال
عنوان ژورنال: Arboricultural Journal
سال: 2017
ISSN: 0307-1375,2168-1074
DOI: 10.1080/03071375.2017.1405569