Distance Degree Index of Some Derived Graphs

Autor:	Jianzhong Xu, Jia-Bao Liu, Ahsan Bilal, Uzma Ahmad, Hafiz Muhammad Afzal Siddiqui, Bahadur Ali, Muhammad Reza Farahani
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	DD index Wiener index Edge Wiener degree of a vertex distance between two vertices Mathematics QA1-939
Zdroj:	Mathematics, Vol 7, Iss 3, p 283 (2019)
Druh dokumentu:	article
ISSN:	2227-7390
DOI:	10.3390/math7030283
Popis:	Topological indices are numerical values associated with a graph (structure) that can predict many physical, chemical, and pharmacological properties of organic molecules and chemical compounds. The distance degree (DD) index was introduced by Dobrynin and Kochetova in 1994 for characterizing alkanes by an integer. In this paper, we have determined expressions for a DD index of some derived graphs in terms of the parameters of the parent graph. Specifically, we establish expressions for the DD index of a line graph, subdivision graph, vertex-semitotal graph, edge-semitotal graph, total graph, and paraline graph.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/d348b27db93849aa8e60209a623d1256 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.