On the Zagreb Indices Equality

Hosam Abdo, Darko Dimitrov, Ivan Gutman

For a simple graph $G$ with $n$ vertices and $m$ edges, the first Zagreb index and the second Zagreb index are defined as $M_1(G)={\sum }_{v\in V}d(v{)}^2$ and $M_2(G)=\sum_{uv\in E}d(…