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International Journal of Mathematics Trends and Technology

Research Article | Open Access | Download PDF

Volume 56 | Number 3 | Year 2018 | Article Id. IJMTT-V56P523 | DOI : https://doi.org/10.14445/22315373/IJMTT-V56P523

Harmonic Temperature Index of Certain Nanostructures


Kishori P. Narayankar, Afework Teka Kahsay, Dickson Selvan
Abstract

In the study of๐‘„๐‘†๐‘ƒ๐‘…/๐‘„๐‘†๐ด๐‘…, topological indices such as Zagreb index, Harmonic index, atom-bond connectivity index are exploited to estimate the bioactivity of chemical compounds. Inspired by many degree based topological indices, we propose here a new topological index, called the Harmonic temperature index ๐ป๐‘‡๐ผ(๐บ) of a molecular graph ๐บ, which shows good correlation with entropy, acentric factor, enthalpy of vaporization and standard enthalpy of vaporization of an octane isomers. In this paper we compute the Harmonic temperature index ๐ป๐‘‡๐ผ(๐บ)of line graphs of subdivision graphs of 2๐ท-lattice, nanotube and nanotorus of ๐‘‡๐‘ˆ๐ถ4๐ถ8 [๐‘, ๐‘ž].

Keywords
Temperature of a vertex, HarmonicTemperature index, nanostructures
References

[1] R. Todeschini, V. Consonni, Handbook of Molecular Descriptors (Wiley-VCH, Weinheim, 2000).
[2] Devillers, J., Balaban, A.T. (eds.): Topological Indices and Related Descriptorsin QSAR and QSPR. Gordon and Breach, Amsterdam (1999).
[3] Gutman, I., Furtula, B. (eds.): Novel Molecular Structure Descriptors Theoryand Applications, vol. I-II. Univ. Kragujevac, Kragujevac (2010).
[4] Todeschini, R., Consonni, V.: Handbook of Molecular Descriptors. Wiley-VCH,Weinheim (2000).
[5] Caporossi, G., Hansen, P., Vukicevic, D.: Comparing Zagreb indices of cyclicgraphs. MATCH Commun. Math. Comput. Chem. 63, 441451 (2010).
[6] Dobrynin, A.A., Kochetova, A.A.: Degre distance of a graph: a degree analogueof the Wiener index. J. Chem. Inf. Comput. Sci. 34, 10821086 (1994).
[7] Fath-Tabar, G.H.: Old and new Zagreb indices of graphs. MATCH Commun.Math. Comput. Chem. 65, 7984 (2011).
[8] SiemionFajtlowicz, On Conjectures of Graffiti, Annals of Discrete Mathematics.
[9] M. Randic, On Characterization of molecular branching, j. Am. Chem. Soc. 97 (1975) 6609-6615.
[10] Kishori P N, Dickson Selvan,: On Temperature Index of Certain Nanostructures(preprint).
[11] S. Fajtlowicz, On conjectures of Graffitiโ€”II, Congr. Numer. 60 (1987) 187โ€“197.

Citation :

Kishori P. Narayankar, Afework Teka Kahsay, Dickson Selvan, "Harmonic Temperature Index of Certain Nanostructures," International Journal of Mathematics Trends and Technology (IJMTT), vol. 56, no. 3, pp. 159-164, 2018. Crossref, https://doi.org/10.14445/22315373/IJMTT-V56P523

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