On the spectral radius of block graphs having all their blocks of the same size

Cristian M. Conde, Ezequiel Dratman, Luciano N. Grippo

Let $\mathcal{B}(n,q)$ be the class of block graphs on $n$ vertices having all their blocks of the same size. We prove that if $G\in \mathcal{B}(n,q)$ has at most three pairwise ad…