L. D. da Costa

collaborators

2 papers

cs.DM2024

Some results involving the $A_{α}$ -eigenvalues for graphs and line graphs

Joao Domingos Gomes da Silva Junior, Carla Silva Oliveira, Liliana Manuela Gaspar C. da Costa

Let $G$ be a simple graph with adjacency matrix $A (G)$ , signless Laplacian matrix $Q (G)$ , degree diagonal matrix $D (G)$ and let $l (G)$ be the line graph of $G$ . In 2017, Nikiforov…

cs.DM2022

On the characteristic polynomial of the $A_{α}$ -matrix for some operations of graphs

João Domingos G. da Silva, Carla Silva Oliveira, Liliana Manuela G. C. da Costa

Let G be a graph of order $n$ with adjacency matrix $A (G)$ and diagonal matrix of degree $D (G)$ . For every $α \in [0, 1]$ , Nikiforov \cite{VN17} defined the matrix $A_α(G) = αD(G) +…

Some results involving the Aα​-eigenvalues for graphs and line graphs

On the characteristic polynomial of the Aα​-matrix for some operations of graphs

Some results involving the $A_{α}$ -eigenvalues for graphs and line graphs

On the characteristic polynomial of the $A_{α}$ -matrix for some operations of graphs