a n‎ote on revised szeged ‎index of ‎graph ‎operations

Let $g$ be a finite and simple graph with edge set $e(g)$‎. ‎the revised szeged index is defined as‎ ‎$sz^{*}(g)=sum_{e=uvin e(g)}(n_u(e|g)+frac{n_{g}(e)}{2})(n_v(e|g)+frac{n_{g}(e)}{2}),$‎ ‎where $n_u(e|g)$ denotes the number of vertices in $g$ lying closer to $u$ than to $v$ and‎ ‎$n_{g}(e)$ is the number of‎ ‎equidistant vertices of $e$ in $g$‎. ‎in this paper‎, ‎we compute the revised szeged index of the‎ ‎join and corona product of graphs‎.