Results 21 to 30 of about 12,121,362 (308)

Estimation of genetic parameters for test-day milk yield in Girolando cows using a random regression model [PDF]

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2021
The objective of this study was to estimate the components of variance and genetic parameters of test-day milk yield in first lactation Girolando cows, using a random regression model. A total of 126,892 test-day milk yield (TDMY) records of 15,351 first-
E.P.B. Santos   +4 more
doaj   +1 more source

Some applications of Legendre numbers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
The associated Legendre functions are defined using the Legendre numbers. From these the associated Legendre polynomials are obtained and the derivatives of these polynomials at x=0 are derived by using properties of the Legendre numbers.
Paul W. Haggard
doaj   +1 more source

The stability analysis and numerical simulation based on Sinc Legendre collocation method for solving a fractional epidemiological model of the Ebola virus

open access: yesPartial Differential Equations in Applied Mathematics, 2021
In this paper, we use an efficient numerical method based on Sinc Legendre collocation method for numerically solving fractional model in the caputo sense of the Ebola virus. Fractional derivative is used in the Caputo sense.
M.H. Derakhshan
doaj   +1 more source

Properties of Legendre Series Estimation of Probability Density [PDF]

open access: yesThe Egyptian Statistical Journal, 1985
An unknown density function f(x) and its derivatives have been estimated by means of Legendre functions pⱼ... The estimates use the partial sums of series of Legendre functions with coefficients âⱼₙ = n⁻¹ Σₖ₌₁ⁿ pⱼ(Xₖ) where X₁,...,Xₙ represent a ...
El Fahham Mostafa
doaj   +1 more source

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

The continous Legendre transform, its inverse transform, and applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
This paper is concerned with the continuous Legendre transform, derived from the classical discrete Legendre transform by replacing the Legendre polynomial Pk(x) by the function Pλ(x) with λ real. Another approach to T.M. MacRobert's inversion formula is
P. L. Butzer, R. L. Stens, M. Wehrens
doaj   +1 more source

Polynomials to model the growth of young bulls in performance tests

open access: yesAnimal, 2014
The use of polynomial functions to describe the average growth trajectory and covariance functions of Nellore and MA (21/32 Charolais+11/32 Nellore) young bulls in performance tests was studied.
D.C.B. Scalez   +4 more
doaj   +1 more source

A New Legendre Spectral Galerkin and Pseudo-Spectral Approximations for Fractional Initial Value Problems

open access: yesAbstract and Applied Analysis, 2013
We extend the application of the Galerkin method for treating the multiterm fractional differential equations (FDEs) subject to initial conditions. A new shifted Legendre-Galerkin basis is constructed which satisfies exactly the homogeneous initial ...
A. H. Bhrawy, M. A. Alghamdi
doaj   +1 more source

Definite Integrals using Orthogonality and Integral Transforms

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We obtain definite integrals for products of associated Legendre functions with Bessel functions, associated Legendre functions, and Chebyshev polynomials of the first kind using orthogonality and integral transforms.
Howard S. Cohl, Hans Volkmer
doaj   +1 more source

The Study of Triple Integral Equations with Generalized Legendre Functions

open access: yesAbstract and Applied Analysis, 2008
A method is developed for solutions of two sets of triple integral equations involving associated Legendre functions of imaginary arguments. The solution of each set of triple integral equations involving associated Legendre functions is reduced to a ...
B. M. Singh, J. Rokne, R. S. Dhaliwal
doaj   +1 more source

Home - About - Disclaimer - Privacy