نتایج جستجو برای: approximate dual frames

تعداد نتایج: 284886  

Journal: :Adv. Comput. Math. 2003
Bin Han Qun Mo

Starting from any two compactly supported d-refinable function vectors in ( L2(R) )r with multiplicity r and dilation factor d, we show that it is always possible to construct 2rd wavelet functions with compact support such that they generate a pair of dual d-wavelet frames in L2(R) and they achieve the best possible orders of vanishing moments. When all the components of the two real-valued d-...

Journal: :Applied Categorical Structures 2014
Guram Bezhanishvili John Harding

It is well known that the category KHaus of compact Hausdorff spaces is dually equivalent to the category KRFrm of compact regular frames. By de Vries duality, KHaus is also dually equivalent to the category DeV of de Vries algebras, and so DeV is equivalent to KRFrm, where the latter equivalence can be described constructively through Booleanization. Our purpose here is to lift this circle of ...

Journal: :Math. Comput. 2016
Zhitao Fan Hui Ji Zuowei Shen

Abstract. Dual Gramian analysis is one of the fundamental tools developed in a series of papers [37, 40, 38, 39, 42] for studying frames. Using dual Gramian analysis, the frame operator can be represented as a family of matrices composed of the Fourier transforms of the generators of (generalized) shiftinvariant systems, which allows us to characterize most properties of frames and tight frames...

Journal: :IEEE Trans. Information Theory 2012
Yulong Liu Tiebin Mi Shidong Li

Compressed sensing with sparse frame representations is seen to have much greater range of practical applications than that with orthonormal bases. In such settings, one approach to recover the signal is known as l1-analysis. We expand in this article the performance analysis of this approach by providing a weaker recovery condition than existing results in the literature. Our analysis is also ...

2000
Ingrid Daubechies Bin Han

Starting from any two compactly supported refinable functions in L2(R) with dilation factor d, we show that it is always possible to construct 2d wavelet functions with compact support such that they generate a pair of dual d-wavelet frames in L2(R). Moreover, the number of vanishing moments of each of these wavelet frames is equal to the approximation order of the dual MRA; this is the highest...

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 1997

Journal: :Transactions of the Institute of Japanese Architects 1936

Journal: :Bulletin of the Belgian Mathematical Society - Simon Stevin 2012

Journal: :Asian-European Journal of Mathematics 2020

2005
RADU BALAN PETER G. CASAZZA CHRISTOPHER HEIL ZEPH LANDAU

This work presents a quantitative framework for describing the overcompleteness of a large class of frames. It introduces notions of localization and approximation between two frames F = {fi}i∈I and E = {ej}j∈G (G a discrete abelian group), relating the decay of the expansion of the elements of F in terms of the elements of E via a map a : I → G. A fundamental set of equalities are shown betwee...

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