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Extremal symmetric division deg index of molecular trees and molecular graphs with fixed number of pendant vertices
Applied Mathematics and Computation ( IF 3.5 ) Pub Date : 2022-08-08 , DOI: 10.1016/j.amc.2022.127438
Jianwei Du , Xiaoling Sun

In 2018, Furtula et al. proved that the symmetric division deg index is a viable and applicable topological index in QSPR/QSAR investigations. In this article, we identify the extremal trees with respect to symmetric division deg index among all molecular trees with fixed number of pendant vertices. In addition, we get a lower bound on symmetric division deg index for all molecular (n,m,p)-graphs (n-order molecular graphs with mn edges and p>0 pendant vertices).



中文翻译:

具有固定悬垂顶点数的分子树和分子图的极值对称划分度指数

2018 年,Furtula 等人。证明了对称分割度指数是QSPR/QSAR研究中可行且适用的拓扑指数。在本文中,我们确定了所有具有固定悬垂顶点数的分子树中关于对称划分度指数的极值树。此外,我们得到了所有分子的对称分裂度指数的下界(n,,p)-图(n-阶分子图n边缘和p>0垂饰顶点)。

更新日期:2022-08-09
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