Results 31 to 40 of about 77,620 (219)

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

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

Discrete differential operators in multidimensional Haar wavelet spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We consider a class of discrete differential operators acting on multidimensional Haar wavelet basis with the aim of finding wavelet approximate solutions of partial differential problems.
Carlo Cattani, Luis M. Sánchez Ruiz
doaj   +1 more source

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

A higher-order collocation technique based on Haar wavelets for fourth-order nonlinear differential equations having nonlocal integral boundary conditions

open access: yesAlexandria Engineering Journal
This article encounters the use of two wavelet methods, namely the collocation method based on Haar wavelets (CMHW) and the higher-order collocation method based on Haar wavelets (HCMHW), to solve linear and nonlinear fourth-order differential equations ...
Muhammad Ahsan   +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

Optimal quadrature for Haar wavelet spaces [PDF]

open access: yesMathematics of Computation, 2003
This article considers the error of the scrambled equidistribution quadrature rules in the worst-case, random-case, and average-case settings. The underlying space of integrands is a Hilbert space of multidimensional Haar wavelet series,
Stefan Heinrich   +2 more
openaire   +2 more sources

APPROXIMATE OPTIMAL CONTROL OF LINEAR TIME-DELAY SYSTEMS VIA HAAR WAVELETS [PDF]

open access: yesJournal of Engineering Science and Technology, 2016
In this paper, Haar wavelet benefits are applied to the optimal control of linear time-delay systems. A discretized form of optimal control problem at collocation points based on some useful properties of Haar wavelets transforms original problem into a ...
AKBAR H. BORZABADI, SOLAYMAN ASADI
doaj  

IMPROVED STROKE DETECTION AT EARLY STAGES USING HAAR WAVELETS AND LAPLACIAN PYRAMID

open access: yesJUTI: Jurnal Ilmiah Teknologi Informasi, 2014
Stroke merupakan pembunuh nomor tiga di dunia, namun hanya sedikit metode tentang deteksi dini. Oleh karena itu dibutuhkan metode untuk mendeteksi hal tersebut.
Michael Ndung'u, Handayani Tjandrasa
doaj   +1 more source

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