We present a scheme that leverage orthonormal or biorthogonal wavelets to a new system of biorthogonal wavelets. The leveraged biorthogonal wavelets will have some nice properties. If we start with orthonormal wavelets, the leveraged scaling functions and wavelets are compactly supported and are diierentiable. The derivatives of the leveraged wavelets are orthogonal to their translations; the d...

In this paper we develop a sublinear-time compressive sensing algorithm for approximating functions of many variables which are compressible in given Bounded Orthonormal Product Basis (BOPB). The resulting is shown to both have an associated best s-term recovery guarantee the BOPB, and also work well numerically solving sparse approximation problems involving contained span fairly general sets ...

We discuss the optimization of a functional with respect to sets of orthonormal functions where unitary invariance does not apply. This problem arises, for example, when density functionals with explicit self-interaction correction are used for systems of electrons. There, unitary invariance cannot be used to reformulate the minimization of the energy with respect to each of the functions as an...

Extending band-limited constructions of orthonormal refinable functions, a special class of periodic functions is used to generate a family of band-limited refinable functions. Characterizations of Riesz bases and frames formed by integer shifts of these refinable functions are obtained. Such families of refinable functions are employed to construct band-limited biorthogonal wavelet bases and b...

We invert the Fredholm equation representing the light scattered by a single spherical particle or a distribution of spherical particles to obtain the particle size distribution function and refractive index. We obtain the solution by expanding the distribution function as a linear combination of a set of orthonormal basis functions. The set of orthonormal basis functions is composed of Schmidt...

In this work we study $$p$$ -adic continuous functions in several variables taking values on $$\mathbb{Z}_p$$ . We describe the orthonormal van der Put base of these and various Lipschitz conditions variables, generalizing previous Anashin. particular, introduce a new class some their properties. also prove Hensel’s lifting lemma for functions, results Yurova Khrennikov.

Let M be a space of weakly*-measurable functions F : ? B(H) on measure (?,?,?), for which the function F*F is Gel'fand integrable and integral d? nuclear operator Hilbert H. We show that H*-module contains an orthonormal basis.

| Segmented Image Coding (SIC) produces images of better subjective quality than techniques such as the Joint Photographic Experts Group (JPEG) standard at very low bit rates. It segments images into regions of similar texture and codes their contour and texture separately. Most SIC techniques represent the texture as a linear combination of orthonormal base functions, which diier from region t...

The well known Boole -Shannon expansion of Boolean functions in several variables (with coefficients in a Boolean algebra B) is also known in more general form in terms of expansion in a set Φ of orthonormal functions. However, unlike the one variable step of this expansion an analogous elimination theorem and consistency is not well known. This article proves such an elimination theorem for a ...