2 papers
math.NA2026
A parameterized block LU preconditioning for double saddle point problems
Hamed Aslani, Mehdi Najafi Kalyani, Davod Khojasteh Salkuyeh
We present a biparametric preconditioning technique for large, sparse, non-symmetric, and non-singular double saddle point problems. The preconditioner is induced using a stationar…
cs.MS2026
The mmatrix toolbox: componentwise accurate algorithms for M-matrices with triplet representation
Bruno Iannazzo, Mehdi Najafi Kalyani, Federico Poloni
We introduce the mmatrix toolbox, a Matlab software package for componentwise accurate computations with M-matrices described through left or right triplet representations. The cor…