2 papers
math.NA2026
The tubal Arnoldi method for tensor function approximation
Fatima Bouyghf, Mohamed El Ghomari, Alaa El Ichi
This paper describes Krylov subspace methods based on the tensor t-product for approximating quantities associated with third-order tensor functions. Specifically, it introduces th…
math.NA2024
Extended block Hessenberg process for the evaluation of matrix functions
A. H. Bentbib, M. EL Ghomari, K. Jbilou +1
In the present paper, we propose a block variant of the extended Hessenberg process for computing approximations of matrix functions and other problems producing large-scale matric…