On geometric-arithmetic index

被引：0
|
作者：
Yan Yuan
Bo Zhou
Nenad Trinajstić
机构：
[1] South China Normal University,Department of Mathematics
[2] The Rugjer Bošković Institute,undefined
来源：
Journal of Mathematical Chemistry | 2010年 / 47卷
关键词：
Geometric-arithmetic index; Molecular graphs; Molecular trees; Degree (of vertex);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The geometric-arithmetic (GA) index is a newly proposed graph invariant in mathematical chemistry. We give the lower and upper bounds for GA index of molecular graphs using the numbers of vertices and edges. We also determine the n-vertex molecular trees with the minimum, the second and the third minimum, as well as the second and the third maximum GA indices.
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页码：833 / 841
页数：8
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