TY - JOUR T1 - THE SZEGED INDEX OF POWER GRAPH OF FINITE GROUPS AU - Banerjee, Subarsha PY - 2025 DA - September Y2 - 2024 JF - TWMS Journal of Applied and Engineering Mathematics JO - JAEM PB - Işık University Press WT - DergiPark SN - 2146-1147 SP - 2166 EP - 2180 VL - 15 IS - 9 LA - en AB - The Szeged index of a graph is an invariant with several applications in chemistry. The power graph of a finite group $G$ is a graph having vertex set as $G$ in which two vertices $u$ and $v$ are adjacent if $v=u^m$ or $u=v^n$ for some $m,n\in \mathbb{N}$. In this paper, we first obtain a formula for the Szeged index of the generalized join of graphs. As an application, we obtain the Szeged index of the power graph of the finite cyclic group $\mathbb Z_n$ for any $n>2$. We further obtain a relation between the Szeged index of the power graph of $\mathbb Z_n$ and the Szeged index of the power graph of the dihedral group $\mathrm{D}_n$. We also provide SAGE codes for evaluating the Szeged index of the power graph of $\mathbb{Z}_n$ and $\mathrm{D}_n$ at the end of this paper. KW - Szeged index KW - generalized join KW - power graph KW - finite cyclic group KW - dihedral group CR - Kharkongor, D., Boro, L., Singh, M. M., and Dutta, S., (2023), Topological indices of total graph of the ring Zn × Zm, TWMS Journal Of Applied And Engineering Mathematics, 13 (4), pp. 1434–1445. CR - Banerjee, S., (2023), On structural and spectral properties of reduced power graph of finite groups, Asian-European Journal of Mathematics, 16 (9), p. 2350170. CR - Banerjee, S., and Adhikari, A., (2023), On spectra of power graphs of finite cyclic and dihedral groups, Rocky Mountain Journal of Mathematics, 53 (2), pp. 341-356. CR - Rehman, M. U., Salman, M., Khan, S., Maden, A. D., and Ali, F., (2022), Mostar index of graphs associated to groups, Main Group Metal Chemistry, 45 (1), pp. 124–135. CR - Salman, M., Noreen, T., Rehman, M. 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