Results 11 to 20 of about 906 (173)

Using shifted Legendre orthonormal polynomials for solving fractional optimal control problems [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2022
‎‎shifted Legendre orthonormal polynomials (SLOPs) are used to approximate the numerical solutions of fractional optimal control problems‎. ‎To do so‎, ‎first‎, ‎the operational matrix of the Caputo fractional derivative‎, ‎the SLOPs‎, ‎and Lagrange ...
R. Naseri, A. Heydari, A.S. Bagherzadeh
doaj   +1 more source

Uniformly bounded orthonormal polynomials on the sphere [PDF]

open access: yesBulletin of the London Mathematical Society, 2015
Improved presentation and corrected ...
Marzo Sánchez, Jordi   +1 more
openaire   +4 more sources

Approximation of functions in Hölder’s class and solution of nonlinear Lane–Emden differential equation by orthonormal Euler wavelets [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
In this article, a method has been developed for the solution of a non-linear Lane-Emden differential equation based on orthonormal Euler wavelet series.
H.C. Yadav, A. Yadav, S. Lal
doaj   +1 more source

Derivatives of Integrating Functions for Orthonormal Polynomials with Exponential-Type Weights

open access: yesJournal of Inequalities and Applications, 2009
Let wρ(x):=|x|ρexp(−Q(x)), ρ>−1/2, where Q∈C2:(−∞,∞)→[0,∞) is an even function.
Hee Sun Jung, Ryozi Sakai
doaj   +2 more sources

Stable Calculation of Krawtchouk Functions from Triplet Relations

open access: yesMathematics, 2021
Deployment of the recurrence relation or difference equation to generate discrete classical orthogonal polynomials is vulnerable to error propagation. This issue is addressed for the case of Krawtchouk functions, i.e., the orthonormal basis derived from ...
Albertus C. den Brinker
doaj   +1 more source

New Operational Matrices of Seventh Degree Orthonormal Bernstein Polynomials

open access: yesمجلة بغداد للعلوم, 2015
Based on analyzing the properties of Bernstein polynomials, the extended orthonormal Bernstein polynomials, defined on the interval [0, 1] for n=7 is achieved. Another method for computing operational matrices of derivative and integration D_b and R_(n+1)
Baghdad Science Journal
doaj   +1 more source

The Sufficient Conditions for Orthogonal Matching Pursuit to Exactly Reconstruct Sparse Polynomials

open access: yesMathematics, 2022
Orthogonal matching pursuit (OMP for short) is a classical method for sparse signal recovery in compressed sensing. In this paper, we consider the application of OMP to reconstruct sparse polynomials generated by uniformly bounded orthonormal systems ...
Aitong Huang, Renzhong Feng, Andong Wang
doaj   +1 more source

Calculating Bivariate Orthonormal Polynomials By Recurrence

open access: yesAustralian & New Zealand Journal of Statistics, 2013
SummaryEmerson gave recurrence formulae for the calculation of orthonormal polynomials for univariate discrete random variables. He claimed that as these were based on the Christoffel–Darboux recurrence relation they were more efficient than those based on the Gram–Schmidt method.
Rayner, J. C. W.   +3 more
openaire   +4 more sources

Collocation Orthonormal Bernstein Polynomials Method for Solving Integral Equations [PDF]

open access: yesEngineering and Technology Journal, 2015
In this paper, we use a combination of Orthonormal Bernstein functions on the interval [0,1] for degree m=5,and 6 to produce anew approach implementing Bernstein operational matrix of derivative as a method for the numerical solution of linear Fredholm ...
Suha. N. Shihab   +2 more
doaj   +1 more source

Orthonormal polynomial wavelets on the interval [PDF]

open access: yesProceedings of the American Mathematical Society, 2005
We use special functions and orthonormal wavelet bases on the real line to construct wavelet-like bases. With these wavelets we can construct polynomial bases on the interval; moreover, we can use them for the numerical resolution of degenerate elliptic operators.
Dai, Dao-Qing, Lin, Wei
openaire   +1 more source

Home - About - Disclaimer - Privacy