Results 11 to 20 of about 4,131 (208)

Haar Wavelet Method for the System of Integral Equations [PDF]

open access: yesAbstract and Applied Analysis, 2014
We employed the Haar wavelet method to find numerical solution of the system of Fredholm integral equations (SFIEs) and the system of Volterra integral equations (SVIEs).
Hassan A. Zedan, Eman Alaidarous
doaj   +6 more sources

Solving Nonlinear Boundary Value Problems Using the Higher Order Haar Wavelet Method

open access: yesMathematics, 2021
The current study is focused on development and adaption of the higher order Haar wavelet method for solving nonlinear ordinary differential equations. The proposed approach is implemented on two sample problems—the Riccati and the Liénard equations. The
Mart Ratas, Jüri Majak, Andrus Salupere
doaj   +4 more sources

Haar wavelet collocation method for the numerical solution of singular initial value problems

open access: yesAin Shams Engineering Journal, 2016
In this paper, numerical solutions of singular initial value problems are obtained by the Haar wavelet collocation method (HWCM). The HWCM is a numerical method for solving integral equations, ordinary and partial differential equations.
S.C. Shiralashetti   +2 more
doaj   +4 more sources

Application of higher order Haar wavelet method for solving nonlinear evolution equations

open access: yesMathematical Modelling and Analysis, 2020
The recently introduced higher order Haar wavelet method is treated for solving evolution equations. The wave equation, the Burgers’ equations and the Korteweg-de Vries equation are considered as model problems.
Mart Ratas, Andrus Salupere
doaj   +3 more sources

Dynamics of flight of the fragments with higher order Haar wavelet method [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
Fragments that have an irregular shape and move at high speeds are difficult to assess since experiments require high-tech solutions, and the differential equations that describe the motion cannot be solved analytically.
Lenart Kivistik   +3 more
doaj   +2 more sources

Haar wavelet collocation method for linear first order stiff differential equations [PDF]

open access: yesITM Web of Conferences, 2020
In general, there are countless types of problems encountered from different disciplines that can be represented by differential equations. These problems can be solved analytically in simpler cases; however, computational procedures are required for more ...
Atay Mehmet Tarık   +4 more
doaj   +2 more sources

A Haar Wavelet Decision Feedback Channel Estimation Method in OFDM Systems

open access: yesApplied Sciences, 2018
Channel estimation is a key technology in improving the performance of the orthogonal frequency division multiplexing (OFDM) system. The pilot-based channel estimation method decreases the spectral efficiency and data transmission rate. Some conventional
Ruiguang Tang, Xiao Zhou, Chengyou Wang
doaj   +2 more sources

Green–Haar wavelets method for generalized fractional differential equations [PDF]

open access: yesAdvances in Difference Equations, 2020
The objective of this paper is to present two numerical techniques for solving generalized fractional differential equations. We develop Haar wavelets operational matrices to approximate the solution of generalized Caputo–Katugampola fractional ...
Mujeeb ur Rehman   +4 more
doaj   +2 more sources

An operational Haar wavelet method for solving fractional Volterra integral equations [PDF]

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2011
An operational Haar wavelet method for solving fractional Volterra integral equationsA Haar wavelet operational matrix is applied to fractional integration, which has not been undertaken before. The Haar wavelet approximating method is used to reduce the fractional Volterra and Abel integral equations to a system of algebraic equations.
Saeedi, Habibollah   +3 more
core   +3 more sources

Feedback Control Method Using Haar Wavelet Operational Matrices for Solving Optimal Control Problems [PDF]

open access: yesAbstract and Applied Analysis, 2013
Most of the direct methods solve optimal control problems with nonlinear programming solver. In this paper we propose a novel feedback control method for solving for solving affine control system, with quadratic cost functional, which makes use of only ...
Waleeda Swaidan, Amran Hussin
doaj   +2 more sources

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