Results 21 to 30 of about 311,920 (239)
Symmetry, 2020 The current study proposes a numerical method which solves nonlinear Fredholm and Volterra integral of the second kind using a combination of a Newton–Kantorovich and Haar wavelet.
M. Sathar +3 more
semanticscholar +1 more source
Sharp growth estimates for dyadic $b$-input $T(b)$ theorems [PDF]
, 2007 The following deals with the $T(b)$ theorems of David, Journ\'e, and Semmes \cite{DJS} considered in a dyadic setting. We find sharp growth estimates for a global and a local dyadic $T(b)$ Theorem.
Salomone, Stephanie
core +4 more sources
Applications of Wavelets to the Analysis of Cosmic Microwave Background Maps [PDF]
, 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
Nonlinear Engineering, 2015 In this paper, we propose a new operational matrix method of fractional order integration based on Haar wavelets to solve fractional order differential equations numerically. The properties of Haar wavelets are first presented.
Shah Firdous A., Abbas R.
doaj +1 more source
APLICAÇÃO DE WAVELETS PARA REMOÇÃO DE RUÍDOS EM SINAIS UNIDIMENSIONAIS
Holos, 2008 Este trabalho descreve uma investigação da filtragem de diferentes tipos de sinais utilizando Wavelets, através do estudo empírico do nível de Threshold. Foram utilizados sinais senoidais padrão e sinais de voz.
Aderson Cleber Pifer +2 more
doaj +1 more source
Haar wavelets scheme for solving the unsteady gas-flow in 4-D
Thermal Science, 2020 The system of unsteady gas-flow of 4-D is solved successfully by alter the possibility of an algorithm based on collocation points and 4-D Haar wavelet method.
Mohamed R. Ali, D. Baleanu
semanticscholar +1 more source
Time-scale analysis of abrupt changes corrupted by multiplicative noise [PDF]
, 2000 Multiplicative Abrupt Changes (ACs) have been considered in many applications. These applications include image processing (speckle) and random communication models (fading).
Castanié, Francis +2 more
core +2 more sources
ENO-wavelet transforms for piecewise smooth functions [PDF]
, 2002 We have designed an adaptive essentially nonoscillatory (ENO)-wavelet transform for approximating discontinuous functions without oscillations near the discontinuities. Our approach is to apply the main idea from ENO schemes for numerical shock capturing
Chan, Tony F., Zhou, H. M.
core +2 more sources
Advances in Difference Equations, 2020 An effective and robust scheme is developed for solutions of two-dimensional time fractional heat flow problems. The proposed scheme is based on two-dimensional Haar wavelets coupled with finite differences. The time fractional derivative is approximated
Abdul Ghafoor +3 more
doaj +1 more source
The special atom space and Haar wavelets in higher dimensions
Demonstratio Mathematica, 2020 In this note, we will revisit the special atom space introduced in the early 1980s by Geraldo De Souza and Richard O’Neil. In their introductory work and in later additions, the space was mostly studied on the real line.
Kwessi Eddy +3 more
doaj +1 more source