Some Infinite Families of Q-Integral Graphs. - Maria Aguieiras A. de Freitas; Nair Maria Maia de Abreu; Renata R. Del-Vecchio (CTW, 2009)

On Q-spectral integral variation. - Maria Aguieiras A. de Freitas; Renata R. Del-Vecchio; Nair Maria Maia de Abreu; Steve Kirkland (Electron. Notes Discret. Math., 2009)

Simultaneously integral graphs on three associated matrices. - Nair Maria Maia de Abreu; Maria Aguieiras A. de Freitas; Renata R. Del-Vecchio (CTW, 2013)

Spectra of graphs obtained by a generalization of the join graph operation. - Domingos M. Cardoso; Maria Aguieiras A. de Freitas; Enide Andrade Martins; María Robbiano (Discret. Math., 2013)

The distance matrix of caterpillar. - Joice S. do Nascimento; Maria Aguieiras A. de Freitas; Renata R. Del-Vecchio (Discret. Appl. Math., 2019)

On trees with algebraic connectivity greater than or equal to $$2 left( 1- cos left( frac{ pi }{7} right) right) $$. - Diego de Souza Maceira Belay; Maria Aguieiras A. de Freitas; Celso M. da Silva (Comput. Appl. Math., 2021)

Relationships between algebraic connectivity and vertex connectivity. - Clarianne Luciola de A. V. M. Lucas; Renata R. Del-Vecchio; Maria Aguieiras A. de Freitas; Joice S. do Nascimento (Comput. Appl. Math., 2022)

On the multiplicities of distance Laplacian eigenvalues. - Rosário Fernandes; Maria Aguieiras A. de Freitas; Celso M. da Silva; Renata R. Del-Vecchio (Comput. Appl. Math., 2023)

Ordering trees by α-index. - Diego de Souza Maceira Belay; Celso M. da Silva; Maria Aguieiras A. de Freitas (Comput. Appl. Math., 2024)