Strong Underrelaxation in Kaczmarz's Method for Inconsistent Systems
Strong Uniqueness. A Far-Reaching Criterion for the Convergence Analysis of Iterative Procedures.
Structure preserving algorithms for perplectic eigenproblems.
Structured condition numbers and backward errors in scalar product spaces.
Structured conditioning of matrix functions.
Structured low rank approximations of the sylvester resultant matrix for approximate GCDS of Bernstein basis polynomials.
Structured polynomial eigenproblems related to time-delay systems.
Structured QR algorithms for Hamiltonian symmetric matrices.
Structured tools for structured matrices.
Sturm-Liouville difference equations and banded matrices
Subdirect sums of doubly diagonally dominant matrices.
Subdirect sums of -strictly diagonally dominant matrices.
Superlinear CG convergence for special right-hand sides.
Sur la réduction des déterminants des matrices de Jacobi d'un type spécial avec l'application à la recherche de leurs valeurs propres
Sur le calcul des produits de matrices.
Sur le théorème de Stein-Rosenberg
Sur les Solutions extrémales d'un système incompatible d'équations
Sur l'extension de normes sur des algèbres de matrices.
Sur l'inversion de matrice
Sweeping preconditioners for elastic wave propagation with spectral element methods
We present a parallel preconditioning method for the iterative solution of the time-harmonic elastic wave equation which makes use of higher-order spectral elements to reduce pollution error. In particular, the method leverages perfectly matched layer boundary conditions to efficiently approximate the Schur complement matrices of a block LDLT factorization. Both sequential and parallel versions of the algorithm are discussed and results for large-scale problems from exploration geophysics are presented....