2 papers
math.CO2026
Real tensor factorizations and generalized inverses under the -product
Faustino Maciala, Cláudia M. Araújo, Pedro PatrÃcio
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
On the Drazin Index of an Anti-Triangular Block Matrix
Faustino Maciala, Xavier Mary, C. Mendes Araújo +1
The Drazin index is a fundamental invariant in the analysis of singular matrices and their generalized inverses. While sharp results are available for block triangular matrices, th…