Results 31 to 40 of about 3,942 (181)
Multilevel Preconditioning of Discontinuous-Galerkin Spectral Element Methods, Part I: Geometrically Conforming Meshes [PDF]
, 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
Legendre Wavelets Method for Solving Boundary Value Problems
Journal 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
Nonlinear Dynamics of Accelerator via Wavelet Approach [PDF]
, 1997 In this paper we present the applications of methods from wavelet analysis to polynomial approximations for a number of accelerator physics problems.
Fedorova, Antonina N. +1 more
core +3 more sources
Nonlinear Engineering, 2016 In the present work a wavelets approximation method is employed to solve fuzzy boundary value differential equations (FBVDEs). Essentially, a truncated Legendre wavelets series together with the Legendre wavelets operational matrix of derivative are ...
Alam Khan Najeeb, Razzaq Oyoon Abdul
doaj +1 more source
Introducing Legendre wavelet functions for damage detection in laminated composite beams
Composites Part C: Open AccessThis 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
3D weak lensing with spin wavelets on the ball [PDF]
, 2015 We construct the spin flaglet transform, a wavelet transform to analyze spin signals in three dimensions. Spin flaglets can probe signal content localized simultaneously in space and frequency and, moreover, are separable so that their angular and radial
Kitching, Thomas D. +3 more
core +2 more sources
Legendre Wavelet Neural Networks for Power Amplifier Linearization
Applied Mathematics, 2014 In this paper, a novel technique for power amplifier (PA) linearization is presented. The Legendre wavelet neural networks (LWNN) is first utilized to model PA and inverse structure of the PA by applying practical transmission signals and the gradient descent algorithm is applied to estimate the coefficients of the LWNN.
Xiaoyang Zheng +2 more
openaire +2 more sources
S2LET: A code to perform fast wavelet analysis on the sphere [PDF]
, 2012 We describe S2LET, a fast and robust implementation of the scale-discretised wavelet transform on the sphere. Wavelets are constructed through a tiling of the harmonic line and can be used to probe spatially localised, scale-depended features of signals ...
Leistedt, B. +3 more
core +3 more sources
Legendre wavelet embedded NeuroFuzzy algorithms for multiple FACTS
International Journal of Electrical Power & Energy Systems, 2016 Abstract Since their inception, damping of Low Frequency Oscillations (LFOs) has been a critical issue in electric power systems. Voltage Source Converter (VSC) based Flexible AC Transmission Systems (FACTS) have a renowned capability for rapid regulation of various network quantities and combat LFOs when equipped with efficient supplementary damping
Rabiah Badar, Laiq Khan
openaire +1 more source
Scientific African, 2020 This article provides an effective technique to solve nonlinear Stratonovich Volterra integral equations (NSVIE). These equations can be reduced to a system of nonlinear algebraic equations with unknown Fibonacci coefficients, by using Fibonacci wavelets,
S.C. Shiralashetti, Lata Lamani
doaj +1 more source