Results 1 to 10 of about 311,920 (239)

Green–Haar wavelets method for generalized fractional differential equations

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

Time-Modulated Arrays With Haar Wavelets [PDF]

open access: yesIEEE Antennas and Wireless Propagation Letters, 2020
Time-modulated arrays (TMAs) can effectively perform beamsteering over the first positive harmonic pattern by applying progressively delayed versions of stair-step approximations of a sine waveform to the antenna excitations. In this letter, we consider synthesizing such stair-step sine approximations by means of Haar wavelets.
Roberto Maneiro-Catoira   +3 more
openaire   +4 more sources

Numerical solution of nonlinear stochastic Itô–Volterra integral equations based on Haar wavelets

open access: yesAdvances in Difference Equations, 2019
In this paper, an efficient numerical method is presented for solving nonlinear stochastic Itô–Volterra integral equations based on Haar wavelets.
Jieheng Wu, Guo Jiang, Xiaoyan Sang
doaj   +2 more sources

Haar wavelet fractional derivative [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2022
In this paper, the fundamental properties of fractional calculus are discussed with the aim of extending the definition of fractional operators by using wavelets.
Carlo Cattani
doaj   +3 more sources

REGULARIZED 3D FUNCTIONAL REGRESSION FOR BRAIN IMAGE DATA VIA HAAR WAVELETS. [PDF]

open access: yesAnn Appl Stat, 2014
The primary motivation and application in this article come from brain imaging studies on cognitive impairment in elderly subjects with brain disorders.
Wang X, Nan B, Zhu J, Koeppe R.
europepmc   +3 more sources

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

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   +5 more sources

A Comparative Study using Scale-2 and Scale-3 Haar Wavelet for the Solution of Higher Order Differential Equation [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
A comparative study of scale-2 and scale-3 Haar wavelet has been presented to illustrate the level of accuracy attained by both the wavelets by applying on higher order differential equations known as Emden fowler equation, which has great importance in ...
Ratesh Kumar, Jaya Gupta
doaj   +1 more source

The Haar wavelets based numerical solution of Reccati equation with integral boundary condition

open access: yesThermal Science, 2023
A Haar wavelet collocation method (HWCM) is presented for the solution of Riccati equation subject to the two-point and integral boundary condition.
Muhammad Ahsan   +6 more
semanticscholar   +1 more source

A Modified Algorithm Based on Haar Wavelets for the Numerical Simulation of Interface Models

open access: yesJournal of Function Spaces, 2022
In this paper, a new numerical technique is proposed for the simulations of advection-diffusion-reaction type elliptic and parabolic interface models.
Gule Rana   +6 more
semanticscholar   +1 more source

A Comparative Study of Wavelets Methods for Solving Non-Linear Two-Dimensional Boussinesq System of Type BBM-BBM [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2014
In this paper, numerical techniques based on the wavelets methods are proposed for the numerical solution of non-linear two-dimensional BBM-BBM system and we compared between them.
Ekhlass Al-Rawi, Ahmed Qasim
doaj   +1 more source

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