2 papers
math.CO2026
Uniform density in matroids, matrices and graphs
Karel Devriendt, Raffaella Mulas
We give new characterizations for the class of uniformly dense matroids and study applications of these characterizations to graphic and real representable matroids. We show that a…
cs.DM2025
Gremban Expansion for Signed Networks: Algebraic and Combinatorial Foundations for Community-Faction Detection
Fernando Diaz-Diaz, Karel Devriendt, Renaud Lambiotte
This article deals with the characterization and detection of community and faction structures in signed networks. We approach the study of these mesoscale structures through the l…