Results 11 to 20 of about 3,057 (141)

High Balanced Biorthogonal Multiwavelets with Symmetry

open access: yesAbstract and Applied Analysis, 2014
Balanced multiwavelet transform can process the vector-valued data sparsely while preserving a polynomial signal. Yang et al. (2006) constructed balanced multiwavelets from the existing nonbalanced ones.
Youfa Li   +3 more
doaj   +1 more source

On Multistage Successive Refinement for Wyner-Ziv Source Coding with Degraded Side Informations [PDF]

open access: yes, 2006
We provide a complete characterization of the rate-distortion region for the multistage successive refinement of the Wyner-Ziv source coding problem with degraded side informations at the decoder.
Diggavi, Suhas, Tian, Chao
core   +5 more sources

Analysis of Compactly Supported Nonstationary Biorthogonal Wavelet Systems Based on Exponential B-Splines

open access: yesAbstract and Applied Analysis, 2011
This paper is concerned with analyzing the mathematical properties, such as the regularity and stability of nonstationary biorthogonal wavelet systems based on exponential B-splines.
Yeon Ju Lee, Jungho Yoon
doaj   +1 more source

Closure of dilates of shift-invariant subspaces [PDF]

open access: yes, 2013
Let $V$ be any shift-invariant subspace of square summable functions. We prove that if for some $A$ expansive dilation $V$ is $A$-refinable, then the completeness property is equivalent to several conditions on the local behaviour at the origin of the ...
Soto-Bajo, Moisés
core   +1 more source

Eilenberg Theorems for Free [PDF]

open access: yes, 2017
Eilenberg-type correspondences, relating varieties of languages (e.g. of finite words, infinite words, or trees) to pseudovarieties of finite algebras, form the backbone of algebraic language theory.
Adámek, Jiří   +3 more
core   +2 more sources

The regularity of refinable functions

open access: yesApplied and Computational Harmonic Analysis, 2013
The regularity of refinable functions has been studied extensively in the past. A classical result by Daubechies and Lagarias states that a compactly supported refinable function in $\R$ of finite mask with integer dilation and translations cannot be in $C^\infty$.
Wang, Yang, Xu, Zhiqiang
openaire   +3 more sources

HOW TO REFINE POLYNOMIAL FUNCTIONS [PDF]

open access: yesInternational Journal of Wavelets, Multiresolution and Information Processing, 2012
Research on refinable functions in wavelet theory is mostly focused to localized functions. However it is known, that polynomial functions are refinable, too. In our paper we investigate on conversions between refinement masks and polynomials and their uniqueness.
openaire   +3 more sources

Polar Codes for Distributed Hierarchical Source Coding [PDF]

open access: yes, 2014
We show that polar codes can be used to achieve the rate-distortion functions in the problem of hierarchical source coding also known as the successive refinement problem.
Barg, Alexander, Ye, Min
core   +1 more source

Refinable functions for dilation families [PDF]

open access: yesAdvances in Computational Mathematics, 2011
Advances in Computational Mathematics, 36 (3)
openaire   +5 more sources

A multiscale collocation method for fractional differential problems [PDF]

open access: yes, 2018
We introduce a multiscale collocation method to numerically solve differential problems involving both ordinary and fractional derivatives of high order.
Pezza, L., Pitolli, F.
core   +1 more source

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