Results 11 to 20 of about 53,695 (215)

Numerical solution of sixth-order boundary-value problems using Legendre wavelet collocation method

open access: yesResults in Physics, 2018
An efficient method is proposed to approximate sixth order boundary value problems. The proposed method is based on Legendre wavelet in which Legendre polynomial is used.
Muhammad Sohaib   +3 more
doaj   +1 more source

Criterion for polynomial solutions to a class of linear differential equation of second order [PDF]

open access: yes, 2006
We consider the differential equations y''=\lambda_0(x)y'+s_0(x)y, where \lambda_0(x), s_0(x) are C^{\infty}-functions. We prove (i) if the differential equation, has a polynomial solution of degree n >0, then \delta_n=\lambda_n s_{n-1}-\lambda_{n-1}s_n ...
Al-Salam W A   +15 more
core   +1 more source

Comparison of Chebyshev and Legendre Polynomial Expansion of Phase Function of Cloud and Aerosol Particles

open access: yesAdvances in Meteorology, 2017
Chebyshev and Legendre polynomial expansion is used to reconstruct the Henyey-Greenstein phase function and the phase functions of spherical and nonspherical particles.
Feng Zhang   +4 more
doaj   +1 more source

Genetic evaluation of European quails by random regression models

open access: yesRevista Brasileira de Zootecnia, 2012
The objective of this study was to compare different random regression models, defined from different classes of heterogeneity of variance combined with different Legendre polynomial orders for the estimate of (co)variance of quails.
Flaviana Miranda Gonçalves   +5 more
doaj   +1 more source

On computation of Hough functions [PDF]

open access: yesGeoscientific Model Development, 2016
Hough functions are the eigenfunctions of the Laplace tidal equation governing fluid motion on a rotating sphere with a resting basic state. Several numerical methods have been used in the past.
H. Wang, J. P. Boyd, R. A. Akmaev
doaj   +1 more source

A fast, simple, and stable Chebyshev-Legendre transform using an asymptotic formula [PDF]

open access: yes, 2013
A fast, simple, and numerically stable transform for converting between Legendre and Chebyshev coefficients of a degree $N$ polynomial in $O(N(\log N)^{2}/ \log \log N)$ operations is derived.
Hale, Nicholas, Townsend, Alex
core   +1 more source

Legendre polynomial order selection in projection pursuit density estimation

open access: yesLietuvos Matematikos Rinkinys, 2013
Projection pursuit method and its application to probability density estimation is discussed. Method proposed by J.H. Friedman, based on projection density estimation using orthogonal Legendre polynomials, is analysed.
Mindaugas Kavaliauskas
doaj   +1 more source

The finite Fourier transform of classical polynomials [PDF]

open access: yes, 2014
The finite Fourier transform of a family of orthogonal polynomials $A_{n}(x)$, is the usual transform of the polynomial extended by $0$ outside their natural domain.
Dixit, Atul   +3 more
core   +3 more sources

An Investigation into the Validity of the Temperature Profile Approximations across the Film Thickness in THD Analysis of Infinitely Wide Slider Bearing

open access: yesTribology Online, 2006
Many investigators have frequently assumed polynomial temperature profiles across the film thickness in the mathematical modeling of lubricating films in the hydrodynamic bearings in order to make computations simpler.
R. K. Sharma, R. K. Pandey
doaj   +1 more source

Properties of circumferential non-propagating waves in functionally graded piezoelectric cylindrical shells

open access: yesAdvances in Mechanical Engineering, 2019
Each guided elastic wave mode is composed of propagating and non-propagating branches. Non-propagating branches associated with complex wavenumbers are substantially different from the propagating ones.
Xiaoming Zhang   +3 more
doaj   +1 more source

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