Semi-Iterative Methods for the Approximate Solution of Ill-Posed Problems.
Sequential regularization of ill-posed problems involving unbounded operators
Single step methods for inhomogeneous linear differential equations in Banach space
Smoothing and interpolation in a convex subset of a Hilbert space : II. The semi-norm case
Some functions of eigenvalues of normal operator
Kellogg's iterations in the eigenvalue problem are discussed with respect to the boundary spectrum of a linear normal operator.
Some insights into the regularization of ill-posed problems.
Some possibilities in solving operator equations using non stationary iterative method
Some remarks on best regularization
Some theorems on the stability of numerical processes
Nell’articolo si dimostrano alcuni teoremi sulla stabilità dei processi numerici di Ritz e della collocazione in rapporto agli errori di «distorsione».
Spectral approximation of positive operators by iteration subspace method
The iteration subspace method for approximating a few points of the spectrum of a positive linear bounded operator is studied. The behaviour of eigenvalues and eigenvectors of the operators arising by this method and their dependence on the initial subspace are described. An application of the Schmidt orthogonalization process for approximate computation of eigenelements of operators is also considered.
Splines and pseudo-inverses
Stabilité et convergence des méthodes spectrales polynômiales. Application à l'équation d'advection
Stability rates for linear ill-posed problems with compact and non-compact operators.
Stable evaluation of differential operators and linear and nonlinear multi-scale filtering.
Structure et estimations de coefficients d'erreurs
Structure et estimations de coefficients d'erreurs
Su una estensione di un teorema di Tikhonov.
Sur les bornes d'erreur a posteriori pour les éléments propres d'opérateurs linéaires.