On the Graovac-Ghorbani index for bicyclic graphs with no pendant vertices

Diego Pacheco, Leonardo de Lima, Carla Silva Oliveira

Let $G=(V,E)$ be a simple undirected and connected graph on $n$ vertices. The Graovac--Ghorbani index of a graph $G$ is defined as $$ABC_{GG}(G)= \sum_{uv \in E(G)} \sqrt{\frac{n_{…