Results 1 to 10 of about 44,437 (210)

Fitting by Orthonormal Polynomials of Silver Nanoparticles Spectroscopic Data

open access: yesEPJ Web of Conferences, 2018
Our original Orthonormal Polynomial Expansion Method (OPEM) in one-dimensional version is applied for first time to describe the silver nanoparticles (NPs) spectroscopic data. The weights for approximation include experimental errors in variables.
Bogdanova Nina, Koleva Mihaela
doaj   +1 more source

On Weyl multipliers of non-overlapping Franklin polynomial systems

open access: yes, 2020
We prove that $\log n$ is an almost everywhere convergence Weyl multiplier for any orthonormal system of non-overlapping Franklin polynomials.
Karagulyan, Grigori A.
core  

Asymptotic Frame Fields of Rational Bézier Curves

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Bézier curves are a type of curves used in computer aided design and related fields. The curves can be defined with the help of De Casteljau algorithm, which is one of the most basic elements of curve and surface design, and Bernstein polynomials, which ...
Tunahan Turhan   +2 more
doaj   +1 more source

A maple program to generate orthonormal polynomials

open access: yesComputers & Mathematics with Applications, 1991
A Maple program for generating orthonormal polynomials with weight function \(w(x,k)=x^ k\) for even \(k\) is given. Numerical results are also presented.
openaire   +1 more source

Inequalities for orthonormal Laguerre polynomials

open access: yesJournal of Approximation Theory, 2007
The following inequality is established: \[ 10^{-8}
openaire   +2 more sources

A Cohen-Type Inequality for Jacobi-Sobolev Expansions

open access: yesJournal of Inequalities and Applications, 2008
Let μ be the Jacobi measure supported on the interval [-1, 1]. Let us introduce the Sobolev-type inner product 〈f,g〉=∫−11f(x)g(x)dμ(x)+Mf(1)g(1)+Nf'(1)g'(1), where M,N≥0.
Bujar Xh. Fejzullahu
doaj   +1 more source

Orthogonal polynomials for exponential weights x2α(1 – x2)2ρe–2Q(x) on [0, 1)

open access: yesOpen Mathematics, 2020
Let Wα,ρ = xα(1 – x2)ρe–Q(x), where α > –12$\begin{array}{} \displaystyle \frac12 \end{array}$ and Q is continuous and increasing on [0, 1), with limit ∞ at 1.
Liu Rong
doaj   +1 more source

Small eigenvalues of large Hankel matrices:The indeterminate case

open access: yes, 1999
In this paper we characterise the indeterminate case by the eigenvalues of the Hankel matrices being bounded below by a strictly positive constant. An explicit lower bound is given in terms of the orthonormal polynomials and we find expresions for this ...
Berg, Christian   +2 more
core   +1 more source

Spectral Representation and Simulation of Fractional Brownian Motion

open access: yesComputation
This paper gives a new representation for the fractional Brownian motion that can be applied to simulate this self-similar random process in continuous time. Such a representation is based on the spectral form of mathematical description and the spectral
Konstantin Rybakov
doaj   +1 more source

Transverse Vibrations of Clamped and Simply-Supported Circular Plates with Two Dimensional Thickness Variation

open access: yesShock and Vibration, 2012
Two dimensional boundary characteristic orthonormal polynomials are used in the Ritz method for the vibration analysis of clamped and simply-supported circular plates of varying thickness. The thickness variation in the radial direction is linear whereas
N. Bhardwaj   +4 more
doaj   +1 more source

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