This article concerns the spectral analysis of matrix‐sequences which can be written as a
non‐Hermitian perturbation of a given Hermitian matrix‐sequence. The main result reads as …

In this paper we introduce a new preconditioner for linear systems of saddle point type
arising from the numerical solution of the Navier–Stokes equations. Our approach is based …

Simulation with models based on partial differential equations often requires the solution of
(sequences of) large and sparse algebraic linear systems. In multidimensional domains …

Newton–Krylov methods, a combination of Newton-like methods and Krylov subspace
methods for solving the Newton equations, often need adequate preconditioning in order to …

We consider the numerical solution of a class of non-Hermitian positive-definite linear
systems by the modified Hermitian and skew-Hermitian splitting (MHSS) iteration method …

Abstract The theory of Generally Locally Toeplitz (or GLT for short) sequences of matrices is
proposed in the analysis of a multigrid solver for the linear systems generated by finite …

We investigate the performance of smoothers based on the Hermitian/skew‐Hermitian
(HSS) and augmented Lagrangian (AL) splittings applied to the Marker‐and‐Cell (MAC) …

We consider a generic sequence of matrices (the nonnormal case is of interest) showing a
proper cluster at zero in the sense of the singular values. By a direct use of the notion of …

With the growing popularity of the regime-switching Lévy processes model in option pricing,
the coupled tempered fractional diffusion equation generated from this process has …

A fast full second order time-step algorithm for some recently proposed nonlinear, nonlocal
active models for the inner ear is analyzed here. In particular, we emphasize the properties …