2 citations · 2 across the 3 of their papers we have counts for
3 papers
math.CO2024
Main -eigenvalues of quasi-threshold graphs
Átila Jones, Vilmar Trevisan, Cybele T. M. Vinagre
In this note, we present a structural description of certain connected cographs having main signless Laplacian eigenvalues. This result allows us to characterize the cog…
cs.DM2016★ 2 cited
Cograph generation with linear delay
Átila A. Jones, Fábio Protti, Renata R. Del-Vecchio
Cographs have always been a research target in areas such as coloring, graph decomposition, and spectral theory. In this work, we present an algorithm to generate all unlabeled cog…
cs.DM2016
Laplacian integrality in P4-sparse and P4-extendible graphs
Renata Del-Vecchio, Atila Jones
Let G be a simple graph and L = L(G) the Laplacian matrix of G. G is called L-integral if all its Laplacian eigenvalues are integer numbers. It is known that every cograph, a graph…