Inverse problem for the Forgotten and the hyper Zagreb indices of trees

Kureethara, Joseph Varghese; Asok, Anjusha; Cangul, Ismail Naci

doi:10.22049/cco.2021.27034.1182

تعداد نشریات	5
تعداد شماره‌ها	108
تعداد مقالات	1,228
تعداد مشاهده مقاله	1,146,430
تعداد دریافت فایل اصل مقاله	1,004,983

	Inverse problem for the Forgotten and the hyper Zagreb indices of trees
Communications in Combinatorics and Optimization
مقاله 18، دوره 7، شماره 2، اسفند 2022، صفحه 203-209 اصل مقاله (417.36 K)
نوع مقاله: Original paper
شناسه دیجیتال (DOI): 10.22049/cco.2021.27034.1182
نویسندگان
Joseph Varghese Kureethara^* ¹؛ Anjusha Asok²؛ Ismail Naci Cangul³
¹Christ University
²Department of Mathematics, Christ University, Bangalore, India
³Department of Mathematics Uludag University, Gorukle 16059 Bursa-Turkey
چکیده
Let $G=(E(G),V(G))$ be a (molecular) graph with vertex set $V(G)$ and edge set $E(G)$. The forgotten Zagreb index and the hyper Zagreb index of G are defined by $F(G) = \sum_{u \in V(G)} d(u)^{3}$ and $HM(G) = \sum_{uv \in E(G)}(d(u)+d(v))^{2}$ where $d(u)$ and d(v) are the degrees of the vertices $u$ and $v$ in $G$, respectively. A recent problem called the inverse problem deals with the numerical realizations of topological indices. We see that there exist trees for all even positive integers with $F(G)>88$ and with $HM(G)>158$. Along with the result, we show that there exist no trees with $F(G) < 90$ and $HM(G) < 160$ with some exceptional even positive integers and hence characterize the forgotten Zagreb index and the hyper Zagreb index for trees.
کلیدواژه‌ها
Topological Index؛ Chemical Graph Theory؛ The Forgotten Zagreb Index؛ The hyper Zagreb Index

مراجع
[1] H. Aram and N. Dehgardi, Reformulated F-index of graph operations, Commun. Comb. Optim. 2 (2017), no. 2, 87–98. [2] M. Eliasi and A. Ghalavand, On trees and the multiplicative sum Zagreb index, Commun. Comb. Optim. 1 (2016), no. 2, 137–148. [3] W. Gao, M.K. Siddiqui, N.A. Rehman, and M.H. Muhammad, Topological characterization of dendrimer, benzenoid, and nanocone, Zeitschrift für Naturforschung C 74 (2018), no. 1-2, 35–43. [4] W. Gao, W. Wang, and M.R. Farahani, Topological indices study of molecular structure in anticancer drugs, J. Chemistry 2016 (2016), Article ID 3216327. [5] I. Gutman, M. Togan, A. Yurttas, A.S. Cevik, and I.N. Cangul, Inverse problem for sigma index, MATCH Commun. Math. Comput. Chem. 79 (2018), no. 2, 491–508. [6] X. Li, Z. Li, and L. Wang, The inverse problems for some topological indices in combinatorial chemistry, J. Comput. Biology 10 (2003), no. 1, 47–55. [7] T. Réti, R. Sharafdini, A. Drégelyi-Kiss, and H. Haghbin, Graph irregularity indices used as molecular descriptors in QSPR studies, MATCH Commun. Math. Comput. Chem. 79 (2018), 509–524. [8] D. Vukičević and M. Gašperov, Bond additive modeling 1. Adriatic indices, Croatica Chemica Acta 83 (2010), no. 3, 243–260. [9] A. Yurtas, M. Togan, V. Lokesha, I.N. Cangul, and I. Gutman, Inverse problem for Zagreb indices, J. Math. Chemistry 57 (2019), no. 2, 609–615.
آمار تعداد مشاهده مقاله: 829 تعداد دریافت فایل اصل مقاله: 915

سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب

پیوندهای مفید

آمار

Inverse problem for the Forgotten and the hyper Zagreb indices of trees