Results 31 to 40 of about 5,978 (203)

Numerical Solution of Fokker-Planck-Kolmogorov Time Fractional Differential Equations Using Legendre Wavelet Method Along with convergence and error analysis [PDF]

open access: yesمدل‌سازی پیشرفته ریاضی
The purpose of this paper is to present an efficient numerical method for finding numerical solutions Fokker-Planck-Kolmogorov time-fractional differential equations.The Legendre wavelet approach was employed for this objective. The Legendre wave was the
شعبان محمدی   +1 more
doaj   +1 more source

Adaptive Spectral Galerkin Methods with Dynamic Marking [PDF]

open access: yes, 2015
The convergence and optimality theory of adaptive Galerkin methods is almost exclusively based on the D\"orfler marking. This entails a fixed parameter and leads to a contraction constant bounded below away from zero.
Canuto, Claudio   +3 more
core   +2 more sources

Legendre Wavelets Method for Solving Boundary Value Problems

open access: yesJournal of the College of Basic Education, 2023
يتم تقديم طريقتين لحل مشكلة قيمة حد الرتبة n باستخدام موجات Legendre المستمرة على الفاصل الزمني [0 ، 1]. تحل الخوارزمية الأولى مشكلة القيمة الحدودية BVP تستخدم مباشرة المصفوفة التشغيلية لمشتق موجات Legendre بينما تقوم الخوارزمية الثانية بتحويل BVP إلى نظام معادلات Volterra المتكاملة ثم باستخدام المصفوفة التشغيلية للتكامل لموجات Legendre ، نظام ...
null Dr. Suha N. Shihab   +1 more
openaire   +1 more source

A Legendre Wavelet Spectral Collocation Method for Solving Oscillatory Initial Value Problems

open access: yesJournal of Applied Mathematics, 2013
In this paper, we propose an iterative spectral method for solving differential equations with initial values on large intervals. In the proposed method, we first extend the Legendre wavelet suitable for large intervals, and then the Legendre-Guass ...
A. Karimi Dizicheh   +3 more
doaj   +1 more source

Multilevel Preconditioning of Discontinuous-Galerkin Spectral Element Methods, Part I: Geometrically Conforming Meshes [PDF]

open access: yes, 2013
This paper is concerned with the design, analysis and implementation of preconditioning concepts for spectral Discontinuous Galerkin discretizations of elliptic boundary value problems.
C. Canuto   +4 more
core   +2 more sources

Introducing Legendre wavelet functions for damage detection in laminated composite beams

open access: yesComposites Part C: Open Access
This paper introduces Legendre wavelets as a novel wavelet type and explores their effectiveness in detecting damage in carbon-epoxy composite beams.
Morteza Saadatmorad   +2 more
doaj   +1 more source

Traveling wave solution of fractional KdV-Burger-Kuramoto equation describing nonlinear physical phenomena

open access: yesAIP Advances, 2014
In this paper, KdV-Burger-Kuramoto equation involving instability, dissipation, and dispersion parameters is solved numerically. The numerical solution for the fractional order KdV-Burger-Kuramoto (KBK) equation has been presented using two-dimensional ...
A. K. Gupta, S. Saha Ray
doaj   +1 more source

Parameter identification for nonlinear damping coefficient from large-amplitude ship roll motion using wavelets

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2017
In this paper, we have introduced an efficient Legendre wavelet spectral method (LWSM) to ship roll motion model for investigating the nonlinear damping coefficients.
D. Sathyaseelan, G. Hariharan, K. Kannan
doaj   +1 more source

On a new method for finding numerical solutions to integro-differential equations based on Legendre multi-wavelets collocation

open access: yesAlexandria Engineering Journal, 2022
In this article, a wavelet collocation method based on linear Legendre multi-wavelets is proposed for the numerical solution of the first as well as higher orders Fredholm, Volterra and Volterra–Fredholm integro-differential equations.
Imran Khan   +4 more
doaj   +1 more source

Detection of the ISW effect and corresponding dark energy constraints made with directional spherical wavelets [PDF]

open access: yes, 2006
Using a directional spherical wavelet analysis we detect the integrated Sachs-Wolfe (ISW) effect, indicated by a positive correlation between the first-year Wilkinson Microwave Anisotropy Probe (WMAP) and NRAO VLA Sky Survey (NVSS) data.
A. N. Lasenby   +6 more
core   +3 more sources

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