On edge irregularity strength of cycle-star graphs

Umme Salma, H. M. Nagesh, Narahari N

For a simple graph $G$, a vertex labeling $\varphi :V(G)\to \{1,2,\dots ,k\}$ is called $k$-labeling. The weight of an edge $uv$ in $G$, written $w_{\varphi }(uv)$, is the sum of the lab…