The sufficient conditions for $k$-leaf-connected graphs in terms of several topological indices

Tingyan Ma, Ligong Wang, Yang Hu

Let $G=(V(G),E(G))$ be a graph with vertex set $V(G)$ and edge set $E(G)$. For $k\ge 2$ and given any subset $S\subseteq |V(G)|$ with $|S|=k$, if a graph $G$ of order $|V(G)|\geq k…