2 papers
math.CO2026
Minimal spectral radius of graphs with given matching number
Jiaqi Liu, Zhenzhen Lou, Vilmar Trevisan
The Brualdi-Solheid problem asks which graph achieves the extremal (maximum or minimum) spectral radius for a given class of graphs. This paper addresses the Brualdi-Solheid proble…
math.CO2024
Main -eigenvalues of quasi-threshold graphs
Ãtila 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…