Results 71 to 80 of about 206 (163)

Approximation by strongly incomplete polynomials on compact sets

open access: yesConcrete Operators
This note presents a question regarding the relationship between approximation by strongly incomplete polynomials on compact subsets K of C $\mathbb{C}$ and the logarithmic capacity of K.
Charpentier Stéphane   +1 more
doaj   +1 more source

A new kind of Durrmeyer-Stancu-type operators

open access: yesDemonstratio Mathematica
The objective of this study is to examine a class of positive linear operators, defined in terms of the bψ,kλ,μ{b}_{\psi ,k}^{\lambda ,\mu } basis and to analyze their approximation properties. Direct estimates for the (λ,μ)\left(\lambda ,\mu )-Durrmeyer-
Cai Qing-Bo   +2 more
doaj   +1 more source

(λ, ψ)-Bernstein-Kantorovich operators

open access: yesDemonstratio Mathematica
In this article, we introduce a new family of (λ,ψ)\left(\lambda ,\psi )-Bernstein-Kantorovich operators which depends on a parameter λ\lambda , derived from the basis functions of Bézier curves and an integrable function ψ\psi .
Aktuğlu Hüseyin   +3 more
doaj   +1 more source

Predicting the solution of fractional order differential equations with Artificial Neural Network

open access: yesPartial Differential Equations in Applied Mathematics
The present paper aims to propose an approximation method of Caputo fractional operator using discretization based on quadrature theory to minimize the error function for an Artificial Neural Network (ANN) with higher convergence rate.
A.M. Khan, Sanjay Gaur, D.L. Suthar
doaj   +1 more source

A theoretical study on resistance of electrolytic solution: Measurement of electrolytic conductivity

open access: yesResults in Physics, 2019
We propose a theoretical approach to determine the conductivity of electrolytic solution using sine waveform voltage as a triggering signal. The approach is based on the acquisition of the complex impedance in two-electrode conductance cell by analyzing ...
Liyue Su, Xiaodong Liao, Zheng Huang
doaj   +1 more source

Equivalence Between K-functionals Based on Continuous Linear Transforms [PDF]

open access: yes, 2007
2000 Mathematics Subject Classification: 46B70, 41A10, 41A25, 41A27, 41A35, 41A36, 42A10.The paper presents a method of relating two K-functionals by means of a continuous linear transform of the function.
Draganov, Borislav, Ivanov, Kamen
core  

Overiteration of d-variate tensor product Bernstein operators: A quantitative result (Dedicated to the memory of Professor Sorin Gal)

open access: yes
Extending an earlier estimate for the degree of approximation of over iterated univariate Bernstein operators towards the same operator of degree one, it is shown that an analogous result holds in the d-variate case.
ACU, Ana-Maria, GONSKA, Heiner
core   +1 more source

Weighted Approximation by a Class of Bernstein-Type Operators

open access: yes, 2011
AMS classification: 41A36, 41A10, 41A25 ...
Parvanov, Parvan E.
core  

Weighted Weierstrass' theorem with first derivatives [PDF]

open access: yes, 2007
32 pages, no figures.-- MSC2000 codes: 41A10, 46E35, 46G10.MR#: MR2338656 (2008g:41004)Zbl#: Zbl pre05173014We characterize the set of functions which can be approximated by continuous functions with the norm $\ \ {L infty(w)}$ for every weight w.
Tourís, Eva   +3 more
core   +1 more source

Diophantine approximations and almost periodic functions

open access: yesDemonstratio Mathematica, 2017
In this paper we investigate the asymptotic behaviour of the classical continuous and unbounded almost periodic function in the Lebesgue measure.Using diophantine approximations we show that this function can be estimated by functions of polynomial type ...
Nawrocki Adam
doaj   +1 more source

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