We revisit the feasibility approach to construction of compactly supported smooth orthogonal wavelets on line. highlight its flexibility and illustrate how symmetry cardinality properties are easily embedded in design criteria. solve resulting wavelet problems using recently introduced centering methods, we compare performance. Solutions admit real-valued scaling functions with near properties.

We discuss stability properties of the method studied recently in [7] and [2], for computing eigenvalues in gaps of the essential spectrum. Date: 25th January 2007. 2000 Mathematics Subject Classification. Primary: 47B36; Secondary: 47B39, 81-08.

The aim of this paper is to give a uniied framework for deriving projection methods for solving systems of linear equations. We shall show that all these methods follow from a unique minimization problem. The particular cases of the methods of steepest descent, Richardson and conjugate gradients will be treated in details. Projection acceleration procedures for accelerating the convergence of a...