The trees for which maximum multiplicity implies the simplicity of other eigenvalues

Among those real symmetric matrices whose graph is a given tree $T$, the maximum multiplicity is known to be the path cover number of $T$. An explicit characterization is given for those trees for which whenever the maximum multiplicity is attained, all other multiplicities are $1$.

Detalhes bibliográficos
Autor principal: Johnson, Charles R. (author)
Outros Autores: Saiago, Carlos Manuel (author)
Formato: article
Idioma:eng
Publicado em: 2019
Assuntos:
Texto completo:http://hdl.handle.net/10362/58384
País:Portugal
Oai:oai:run.unl.pt:10362/58384