‎Let $G$ be a simple connected graph‎. ‎The edge-Wiener index $W_e(G)$‎ ‎is the sum of all distances between edges in $G$‎, ‎whereas the hyper‎ ‎edge-Wiener index $WW_e(G)$ is defined as ‎ ‎$W{W_e}(G) = {frac{1}{2}}{W_e}(G)‎ ...