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Compactly supported symmetric \(C^\infty\) wavelets with spectral approximation order. (English) Zbl 1161.42312

Summary: We obtain symmetric \(C^\infty\) real-valued tight wavelet frames in \(L_2(\mathbb{R})\) with compact support and the spectral frame approximation order. Furthermore, we present a family of symmetric compactly supported \(C^\infty\) orthonormal complex wavelets in \(L_2(\mathbb{R})\). A complete analysis of nonstationary tight wavelet frames and orthonormal wavelet bases in \(L_2(\mathbb{R})\) is given.

MSC:

42C40 Nontrigonometric harmonic analysis involving wavelets and other special systems
41A25 Rate of convergence, degree of approximation
41A05 Interpolation in approximation theory
42C05 Orthogonal functions and polynomials, general theory of nontrigonometric harmonic analysis
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