Results 31 to 40 of about 311,920 (239)

Non-dyadic Haar Wavelet Algorithm for the Approximated Solution of Higher order Integro-Differential Equations

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
The objective of this study is to explore non-dyadic Haar wavelets for higher order integro-differential equations. In this research article, non-dyadic collocation method is introduced by using Haar wavelet for approximating the solution of higher order
Ratesh Kumar, Sabiha Bakhtawar
doaj   +1 more source

Wavelets and their use [PDF]

open access: yes, 2001
This review paper is intended to give a useful guide for those who want to apply discrete wavelets in their practice. The notion of wavelets and their use in practical computing and various applications are briefly described, but rigorous proofs of ...
Dremin, I. M.   +2 more
core   +2 more sources

A comparative study for fractional chemical kinetics and carbon dioxide CO2 absorbed into phenyl glycidyl ether problems

open access: yesAIMS Mathematics, 2020
The essential objective of this work is to implement Adam Bashforth’s Moulton (ABM) and Haar wavelet method (HWM) to solve fractional chemical kinetics and another problem that relates the condensations of carbon dioxide (CO2) and phenyl glycidyl ether ...
Ranbir Kumar   +3 more
doaj   +1 more source

Evidence for a Galactic gamma ray halo [PDF]

open access: yes, 1998
We present quantitative statistical evidence for a $\gamma$-ray emission halo surrounding the Galaxy. Maps of the emission are derived. EGRET data were analyzed in a wavelet-based non-parametric hypothesis testing framework, using a model of expected ...
Diehl, R.   +7 more
core   +5 more sources

Permeability up-scaling using Haar Wavelets [PDF]

open access: yesTransport in Porous Media, 2006
Accepted for pubblication on Transport in Porous Media June ...
Pancaldi, V.   +2 more
openaire   +2 more sources

Simulation of Field Theories in Wavelet Representation [PDF]

open access: yes, 1994
The field is expanded in a wavelet series and the wavelet coefficients are varied in a simulation of the 2D $\phi^4$ field theory. The drastically reduced autocorrelations result in a substantial decrease of computing requirements, compared to those in ...
Best   +10 more
core   +2 more sources

Approximation algorithms for wavelet transform coding of data streams [PDF]

open access: yes, 2006
This paper addresses the problem of finding a B-term wavelet representation of a given discrete function $f \in \real^n$ whose distance from f is minimized.
Guha, Sudipto, Harb, Boulos
core   +8 more sources

Haar wavelets multi-resolution collocation procedures for two-dimensional nonlinear Schrödinger equation

open access: yesAlexandria Engineering Journal, 2021
In this article, two different multi-resolution methods based on Haar wavelets are proposed for the numerical solution of two-dimensional Schrödinger equations. Both the linear and nonlinear model equations are considered.
Xuan Liu   +5 more
doaj   +1 more source

FOURIER COEFFICIENTS OF CONTINUOUS FUNCTIONS WITH RESPECT TO LOCALIZED HAAR SYSTEM

open access: yesПроблемы анализа, 2017
We construct a nontrivial example of a continuous function f* on [0, 1]² which is orthogonal to tensor products of Haar functions supported on intervals of the same length.
E. S. Belkina, Yu. V. Malykhin
doaj   +1 more source

MUSCL reconstruction and Haar wavelets [PDF]

open access: yesCommunications in Mathematical Sciences, 2015
MUSCL extensions (Monotone Upstream-centered Schemes for Conservation Laws) of the Godunov numerical scheme for scalar conservation laws are shown to admit a rather simple reformulation when recast in the formalism of the Haar multi-resolution analysis of L2(R).
openaire   +1 more source

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