Results 1 to 10 of about 1,539,341 (287)
On Rate of Approximation by Modified Beta Operators [PDF]
International Journal of Mathematics and Mathematical Sciences, 2009 We establish the rate of convergence for the modified Beta operators 𝐵𝑛(𝑓,𝑥), for functions having derivatives of bounded variation.
Prerna Maheshwari (Sharma), Vijay Gupta
doaj +3 more sources
About the rate of rational approximation of some analytic functions
Mathematical Modelling and Analysis, 1998 The article is devoted to results relating to the theory of rational approximation of an analytic function. Let ƒ be an analytic function on the disk {z : |z| < ñ), ñ > 1. The rate of decrease of the best approximations ñn of a function ƒ by the rational
A. YA. Radyno
doaj +5 more sources
Approximation by matrix transform in generalized grand Lebesgue spaces with variable exponent
Journal of Numerical Analysis and Approximation Theory, 2021 In this work the Lipschitz subclass of the generalized grand Lebesgue space with variable exponent is defined and the error of approximation by matrix transforms in this subclass is estimated.
Ahmet Testici, Daniyal Israfilov
doaj +7 more sources
Pointwise approximation of modified conjugate functions by matrix operators of their Fourier series; pp 50-60 [PDF]
Proceedings of the Estonian Academy of Sciences, 2018 We extend the results presented by Xh. Z. Krasniqi (Slight extensions of some theorems on the rate of pointwise approximation of functions from some subclasses of Lp. Acta Comment. Univ. Tartu. Math., 2013, 17, 89â101) and W. Lenski and B.
Włodzimierz Łenski, Bogdan Szal
doaj +1 more source
Minimum rates of approximate sufficient statistics [PDF]
2017 IEEE International Symposium on Information Theory (ISIT), 2017 Given a sufficient statistic for a parametric family of distributions, one can estimate the parameter without access to the data. However, the memory or code size for storing the sufficient statistic may nonetheless still be prohibitive. Indeed, for $n$ independent samples drawn from a $k$-nomial distribution with $d=k-1$ degrees of freedom, the length
Masahito Hayashi, Vincent Y. F. Tan
openaire +2 more sources
Approximation of integrable functions by general linear matrix operators of their Fourier series
Demonstratio Mathematica, 2022 The pointwise estimates of the deviation Tn,Af(⋅)−f(⋅){T}_{n,A}f(\cdot )-f\left(\cdot ) in terms of pointwise moduli of continuity based on the points of differentiability of indefinite integral of ff, with application of the rth differences of the ...
Mishra Vishnu Narayan +2 more
doaj +1 more source
Mathematics, 2022 The goal of this research article is to introduce a sequence of α–Stancu–Schurer–Kantorovich operators. We calculate moments and central moments and find the order of approximation with the aid of modulus of continuity.
Md. Heshamuddin +4 more
doaj +1 more source
Rate Of Convergence In Approximation
Periodica Mathematica Hungarica, 2014 In the present paper we give a Korovkin type approximation theorem for a sequence of positive linear operators acting from into itself using the concept of -summation processes. We also study the rate of convergence of these operators.
Orhan, C., Sakaoglu, I.
openaire +2 more sources
On the convergence rate of vanishing viscosity approximations [PDF]
Communications on Pure and Applied Mathematics, 2004 AbstractGiven a strictly hyperbolic, genuinely nonlinear system of conservation laws, we prove the a priori bound ‖u(t, ·) −uϵ(t, ·)‖=O(1)(1 +t) ·$\sqrt{\varepsilon}$|ln ϵ| on the distance between an exact BV solutionuand a viscous approximationuϵ, letting the viscosity coefficient ϵ → 0. In the proof, starting fromuwe construct an approximation of the
Bressan, Alberto, YANG T.
openaire +4 more sources
Rate of convergence of discretization in Chebyshev approximation [PDF]
Mathematics of Computation, 1981 The paper treats, in a particularly simple fashion, the practical problem of the rate of convergence of discretization in real and complex Chebyshev approximation. Both linear and nonlinear approximations are discussed and, subject to certain conditions, quadratic convergence of the discretizations is obtained along with an explicit rate constant which
Dunham, C. B., Williams, Jack
openaire +2 more sources