C. Justel

collaborators

3 papers

cs.DM2026

Structural and Spectral Properties of Strictly Interval Graphs

Claudia Justel, Lilian Markenzon

In this paper we deal with a subclass of chordal graphs, which are simultaneously strictly chordal and interval, the strictly interval graphs. We present a new characterization of…

cs.DM2026

$k$ -path graphs: experiments and conjectures about algebraic connectivity and $I^\pm$ -index

Rafael L. de Paula, Claudia M. Justel, Carla S. Oliveira +1

This work presents conjectures about eigenvalues of matrices associated with $k$ -path graphs, the algebraic connectivity, defined as the second smallest eigenvalue of the Laplacian…

cs.DM2025

New results on $B_{I^} \pm$ -eigenvalues of a graph

Let $G$ be a graph with adjacency matrix $A (G)$ and Laplacian matrix $L (G)$ . In 2024, Samanta \textit{et} \textit{al.} defined the convex linear combination of $A (G)$ and $L (G)$ as…

Structural and Spectral Properties of Strictly Interval Graphs

k-path graphs: experiments and conjectures about algebraic connectivity and I^±-index

New results on BI^​±-eigenvalues of a graph

$k$ -path graphs: experiments and conjectures about algebraic connectivity and $I^\pm$ -index

New results on $B_{I^} \pm$ -eigenvalues of a graph