INVESTIGADORES
CONDE Cristian Marcelo
artículos
Título:
ON THE SPECTRAL RADIUS OF BLOCK GRAPHS HAVING ALL THEIR BLOCKS OF THE SAME SIZE
Autor/es:
CRISTIAN M. CONDE ; EZEQUIEL DRATMAN; GRIPPO, LUCIANO N. GRIPPO
Revista:
LINEAR ALGEBRA AND ITS APPLICATIONS
Editorial:
ELSEVIER SCIENCE INC
Referencias:
Lugar: Amsterdam; Año: 2022 vol. 634 p. 137 - 148
ISSN:
0024-3795
Resumen:
Let $B(n, q)$ be the class of block graphs on n vertices having all their blocks of the same size. We prove that if $G ∈ B(n, q)$ has at most three pairwise adjacent cut vertices then the minimum spectral radius $ρ(G)$ is attained at a unique graph. In addition, we present a lower bound for $ρ(G)$ when $G ∈ B(n, q).$
