3 papers
math.NA2026
Matrix algebras with orthogonal Cauchy-like transforms and Toeplitz approximation: a negative result
Dario Fasino, Davide Furchì, Valerio Loi +1
We consider newly designed matrix algebras associated with Cauchy orthogonal transforms. In this work, we are interested in checking the approximation of Toeplitz matrices using al…
math.NA2025
Spectral analysis of the stiffness matrix sequence in the approximated Stokes equation
Samuele Ferri, Chiara Giraudo, Valerio Loi +2
In the present paper, we analyze in detail the spectral features of the matrix sequences arising from the Taylor-Hood - approximation of variable viscos…
math.NA2025
Blocking structures, approximation, and preconditioning
Nikos Barakitis, Marco Donatelli, Samuele Ferri +3
We consider block-structured matrices , where the blocks are of (block) unilevel Toeplitz type with matrix-valued generating functions. Under mild assumptions on t…