Presents methods for testing sets of special functions for completeness and basis properties, mostly in L2 and L2 spaces.

This revised and expanded monograph presents the general theory for frames and Riesz bases in Hilbert spaces as well as its concrete realizations within Gabor a

Wavelets is a carefully organized and edited collection of extended survey papers addressing key topics in the mathematical foundations and applications of wave

Orthogonal polynomials of several variables, approximation theory, symmetry-group methods.