3 papers
math.CO2026
Real tensor factorizations and generalized inverses under the -product
Faustino Maciala, Cláudia M. Araújo, Pedro Patrício
The algebraic theory of third-order tensors under the -product is naturally formulated over the complex field via Fourier block diagonalization. However, many applications requi…
math.CO2026
Drazin Inverses and Walk Structure of Oriented Dutch Windmill Graphs
C. Mendes Araújo, Faustino Maciala, Pedro Patrício
We investigate the Drazin invertibility of adjacency matrices associated with a class of oriented graphs known as oriented Dutch windmill graphs. By analyzing walks of prescribed l…
math.CO2025
On generalized inverses of matrices associated with certain graph classes
Cláudia M. Araújo, Faustino A. Maciala, Pedro Patrício
We investigate generalized inverses of matrices associated with two classes of digraphs: double star digraphs and D-linked stars digraphs. For double star digraphs, we determine th…