On expected values of some degree based topological descriptors of random Phenylene chains

被引：5
|
作者：
Hui, Zhi-hao [1 ,2 ]
Yousaf, Shamaila [3 ]
Aslam, Adnan [4 ]
Ahsan Binyamin, Muhammad [5 ]
Kanwal, Salma [6 ]
机构：
[1] Pingdingshan Univ, Sch Math & Stat, Pingdingshan, Peoples R China
[2] Henan Int Joint Lab Multidimens Topol & Carcinogen, Pingdingshan, Peoples R China
[3] Univ Gujrat, Dept Math, Gujrat, Pakistan
[4] Univ Engn & Technol, Dept Nat Sci & Humanities, Lahore RCET, Lahore, Pakistan
[5] Lahore Coll Women Univ, Lahore, Pakistan
[6] GC Univ Faisalabad, Dept Math, Faisalabad, Pakistan
来源：
MOLECULAR PHYSICS | 2023年 / 121卷 / 16期
关键词：
Expected values; random phenylene chain; Gourava index; redefined Zagreb indices; MOLECULAR-ORBITALS; BENZENOID SYSTEMS; GRAPH-THEORY; INDEX; SUBTREES; ENERGY; SPIRO;
D O I：
10.1080/00268976.2023.2225648
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Phenylenes belong to a special class of conjugated hydrocarbons composed of a special arrangement of hexagons and squares. In the phenylene structure, every square is adjacent to a pair of hexagons, and any two hexagons are not adjacent. If in the structure of phenylene only two squares are adjacent to every hexagon, then it is called a phenylene chain. In this paper, we compute the expected values of the first and second Gourava index, the first and second redefined Zagreb index, and the Hyper-Zagreb index of random phenylene chains. Furthermore, a comparison between the expected values of the computed indices among the classes of random phenylene chains has been investigated.
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页数：8
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