On the energy of singular and non singular graphs

Let $G$ be a simple undirected graph with $n$ vertices, $m$ edges, adjacency matrix $A$, largest eigenvalue $\rho$ and nullity $\kappa$. The energy of $G,$ $\mathcal{E}(G)$ is the sum of its singular values. In this work lower bounds for $\mathcal{E}(G)$ in terms of the coefficient of $\mu^{\kappa}$...

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Detalhes bibliográficos
Autor principal: Andrade, Enide (author)
Outros Autores: Carmona, Juan R. (author), Poveda, Alex (author), Robbiano, María (author)
Formato: article
Idioma:eng
Publicado em: 2019
Assuntos:
Texto completo:http://hdl.handle.net/10773/27220
País:Portugal
Oai:oai:ria.ua.pt:10773/27220