Results 11 to 20 of about 497,549 (345)

The performance of spherical wavelets to detect non-Gaussianity in the CMB sky [PDF]

open access: yes, 2001
We investigate the performance of spherical wavelets in discriminating between standard inflationary models (Gaussian) and non-Gaussian models. For the later we consider small perturbations of the Gaussian model in which an artificially specified ...
Aghanim   +42 more
core   +2 more sources

Mollification Based onWavelets

open access: yesAxioms, 2013
The mollification obtained by truncating the expansion in wavelets is studied, where the wavelets are so chosen that noise is reduced and the Gibbs phenomenon does not occur.
Ken-ichi Sato, Tohru Morita
doaj   +1 more source

Triangular Wavelets: An Isotropic Image Representation with Hexagonal Symmetry

open access: yesEURASIP Journal on Image and Video Processing, 2009
This paper introduces triangular wavelets, which are two-dimensional nonseparable biorthogonal wavelets defined on the regular triangular lattice. The construction that we propose is a simple nonseparable extension of one-dimensional interpolating ...
Kensuke Fujinoki, Oleg V. Vasilyev
doaj   +2 more sources

Wavelet Electrodynamics [PDF]

open access: yesApplied and Computational Harmonic Analysis, 1992
A new representation for solutions of Maxwell's equations is derived. Instead of being expanded in plane waves, the solutions are given as linear superpositions of spherical wavelets dynamically adapted to the Maxwell field and well-localized in space at the initial time.
openaire   +3 more sources

Elliptic-Cylindrical Wavelets: The Mathieu Wavelets [PDF]

open access: yesIEEE Signal Processing Letters, 2004
10 pages, 2 ...
Lira, M. M. S.   +2 more
openaire   +2 more sources

Elastic wavelets and their application to problems of solitary wave propagation

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2008
The paper can be referred to that direction in the wavelet theory, which was called by Kaiser "the physical wavelets". He developed the analysis of first two kinds of physical wavelets - electromagnetic (optic) and acoustic wavelets.
Cattani, Carlo, Rushchitsky, Jeremiah
doaj   +1 more source

Wavelets and digital filters designed and synthesized in the time and frequency domains

open access: yesMathematical Biosciences and Engineering, 2022
The relevance of the problem under study is due to the fact that the comparison is made for wavelets constructed in the time and frequency domains. The wavelets constructed in the time domain include all discrete wavelets, as well as continuous wavelets ...
Viliam Ďuriš   +2 more
doaj   +1 more source

Applications of Wavelets to the Analysis of Cosmic Microwave Background Maps [PDF]

open access: yes, 1999
We consider wavelets as a tool to perform a variety of tasks in the context of analyzing cosmic microwave background (CMB) maps. Using Spherical Haar Wavelets we define a position and angular-scale-dependent measure of power that can be used to assess ...
A. H. Jaffe   +4 more
core   +4 more sources

Wavelet Foveation

open access: yesApplied and Computational Harmonic Analysis, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chang, Ee-Chien   +2 more
openaire   +1 more source

An Efficient Numerical Method for Fractional SIR Epidemic Model of Infectious Disease by Using Bernstein Wavelets

open access: yesMathematics, 2020
In this paper, the operational matrix based on Bernstein wavelets is presented for solving fractional SIR model with unknown parameters. The SIR model is a system of differential equations that arises in medical science to study epidemiology and medical ...
Sunil Kumar   +6 more
semanticscholar   +1 more source

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