S. Serra-Capizzano

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math.NA2026

Block Schwarz methods and preconditioning strategies using Generalized locally Toeplitz tools - part I: analysis of the preconditioners and numerical validation

Abdessadek Rifqui, Ahmed Ratnani, Stefano Serra-Capizzano

In the current work we present a spectral analysis of the additive and multiplicative Schwarz methods within the framework of domain decomposition techniques, by investigating the…

math.NA2024

On $τ$ -preconditioners for a quasi-compact difference scheme to Riesz fractional diffusion equations with variable coefficients

Zi-Hang She, Xue Zhang, Xian-Ming Gu +1

In the present study, we consider the preconditioned generalized minimal residual (GMRES) method for the asymmetric linear systems arising from the $d$ -dimensional Riesz space frac…

Block Schwarz methods and preconditioning strategies using Generalized locally Toeplitz tools - part I: analysis of the preconditioners and numerical validation

On τ-preconditioners for a quasi-compact difference scheme to Riesz fractional diffusion equations with variable coefficients

On $τ$ -preconditioners for a quasi-compact difference scheme to Riesz fractional diffusion equations with variable coefficients