Paula M. Chiapparoli

collaborators

2 papers

math.CO2026

On di-Cayley graphs and their spectrum

Paula M. Chiapparoli, Ricardo A. Podesta

Given a group $G$ and three subsets $S_{ℓ}, S_{r}, S_{m} \subset G$ , we consider di-Cayley graphs $D X (G; S_{ℓ}, S_{r}, S_{m})$ and di-Cayley sum graphs $D X^{+} (G; S_{ℓ}, S_{r}, S_{m})$ , directed ge…

math.CO2026

Isospectral Cayley graphs with even and odd spectrum

Paula M. Chiapparoli, Ricardo A. Podestá

For a group $G$ and subsets $S, T \subset G$ we introduce the mirror di-Cayley graph $M X (G; S, T)$ and mirror di-Cayley sum graph $M X^{+} (G; S, T)$ with connections sets $S$ and $T$ (MDCG…