The domination number and the least Q-eigenvalue II

Guanglong Yu

Denote by $L_{g,l}$ the $lollipop$ $graph$ obtained by attaching a pendant path $\mathbb{P}=v_g{v}_{g+1}\cdots v_{g+l}$ ($l\ge 1$) to a cycle $\mathbb{C}=v_{1}v_{2}\cdots v_{g}v_…