2 papers
math.CO2026
On the Spectra of Digraph Laplacians
Saieed Akbari, Michael Cavers, Farzad Maghsoudi +1
We present several Laplacian-type matrices associated with a loopless digraph : the out-/in-degree Laplacians , the incidence…
math.CO2026
Spectra of Subdivision Products of Digraphs
Michael Cavers, Farzad Maghsoudi, Babak Miraftab
This paper introduces four types of subdivision products for simple directed graphs extending those from the undirected case, in particular, the subdivision-vertex join, subdivisio…