%0 Journal Article %T Sombor index of some graph transformations %J Communications in Combinatorics and Optimization %I Azarbaijan Shahid Madani University %Z 2538-2128 %A Ramane, Harishchandra S. %A Gutman, Ivan %A Bhajantri, Kavita %A Kitturmath, Deepa V. %D 2023 %\ 03/01/2023 %V 8 %N 1 %P 193-205 %! Sombor index of some graph transformations %K Sombor index %K degree (of vertex) %K Graph Transformation %R 10.22049/cco.2021.27484.1272 %X The Sombor index of the graph $G$ is a recently introduced degree based topological index. It is defined as $SO = \sum_{uv \in E(G)} \sqrt{d(u)^2+d(v)^2}$, where $d(u)$ is the degree of the vertex u and $E(G)$ is the edge set of $G$.  In this paper we calculate $SO$ of some graph transformations.  %U http://comb-opt.azaruniv.ac.ir/article_14340_7ace5e93139b6507fbe4366cc8178fdd.pdf