COMPUTATION OF FIRST ZAGREB, SECOND ZAGREB AND FORGOTTEN INDICES OF GRAPHS BASED ON SPLITTING GRAPH
DOI:
https://doi.org/10.46754/jmsi.2025.06.001Keywords:
Splitting graph, Forgotten index, Second Zagreb index, First Zagreb indexAbstract
The First Zagreb, Second Zagreb, and Forgotten indices are degree-based topological indices used to analyse the properties of chemical compounds. In graph theory, a molecular graph can represent the structural formula of a chemical compound. This paper aims to calculate the exact formulae of the First Zagreb, Second Zagreb, and Forgotten indices for the graphs obtained by applying operations on the splitting graph of a connected graph. Thus, a relation between the topological index of the original graph and the resultant graphs is established.
References
Todeschini, R., & Consonni, V. (2008). Handbook of molecular descriptors. John Wiley and Son.
Gutman, I., & Trinajstić, N. (1972). Graph theory and molecular orbitals. Total φ-electron energy of alternant hydrocarbons. Chemical Physics Letters, 17(4), 535-538. https://doi.org/10.1016/0009-2614(72)85099-1 DOI: https://doi.org/10.1016/0009-2614(72)85099-1
Gutman, I., Ručšić, B., Trinajstić, N., & Wilcox, C. F. (1975). Graph theory and molecular orbitals. XII. Acyclic polyenes. The Journal of Chemical Physics, 62(9), 3399-3405. https://doi.org/10.1063/1.430994 DOI: https://doi.org/10.1063/1.430994
Furtula, B., & Gutman, I. (2015). A forgotten topological index. Journal of Mathematical Chemistry, 53(4), 1184-1190. https://doi.org/10.1007/s10910-015-0480-z DOI: https://doi.org/10.1007/s10910-015-0480-z
Gutman, I., Das, K. C. (2004). The first Zagreb index 30 years after. MATCH Communications in Mathematical and in Computer Chemistry, 50(2004), 83-92. https://match.pmf.kg.ac.rs/electronic_versions/Match50/match50_83-92.pdf
Nikolić, S., Kovačević, G., Miličević, A., & Trinajstić, N. (2003). The Zagreb indices 30 years after. Croatica Chemica Acta, 76(2), 113-124. http://fulir.irb.hr/751/1/CCA_76_2003_113_124_nikolic.pdf
Khalifeh, M., Yousefi-Azari, H., & Ashrafi, A. (2008). The first and second Zagreb indices of some graph operations. Discrete Applied Mathematics, 157(4), 804–811. https://doi.org/10.1016/j.dam.2008.06.015 DOI: https://doi.org/10.1016/j.dam.2008.06.015
Liju, A., & Indulal, G. (2021). Some degree based topological indices of a generalised F sums of graphs. Electronic Journal of Mathematical Analysis and Applications, 9(1). https://doi.org/10.21608/ejmaa.2021.313060 DOI: https://doi.org/10.21608/ejmaa.2021.313060
Liju, A., & Indulal, G. (2023). Zagreb indices of a new sum of graphs. Ural Mathematical Journal, 9(1), 4-17. http://dx.doi.org/10.15826/umj.2023.1.001 DOI: https://doi.org/10.15826/umj.2023.1.001
Javaid, M., Javed, S., Memon, S. Q., & Alanazi, A. M. (2021). Forgotten index of generalized operations on graphs. Journal of Chemistry, 2021, 1-14. https://doi.org/10.1155/2021/9971277 DOI: https://doi.org/10.1155/2021/9971277
Sampathkumar, E., & Walikar, H. B. (1980). On the splitting graph of a graph. The Karnatak University Science, 25(13), 13-16.
Lu, Z., Ma, X., & Zhang, M. (2022). Spectra of graph operations based on splitting graph, Journal of Applied Analysis and Computation, 13(1), 133-155. http://dx.doi.org/10.11948/20210446 DOI: https://doi.org/10.11948/20210446
Thomas, A. S., Kalayathankal, S. J., & Kureethara, J. V. (2022). Spectrum of corona products based on splitting graphs. Discrete Mathematics Algorithms and Applications, Article 2250087. https://doi.org/10.1142/S1793830922500872 DOI: https://doi.org/10.1142/S1793830922500872
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Journal of Mathematical Sciences and Informatics

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

