A Study of the stability for one of non-linear autoregressive models with trigonometric terms with application [PDF]
المجلة العراقية للعلوم الاحصائية, 2011 In this paper we study the stability of one of non-linear autoregressive models with trigonometric terms , by using the linear approximation technique .
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Approximation by trigonometric polynomials in morrey type spaces
, 2022 Tez altı bölümden oluşmaktadır. İlk bölüm giriş kısmına ayrılmıştır. İkinci bölümde temel kavramlar ve teoremler verilmiştir. Üçüncü bölümde Morrey uzaylarının tanımı ve bazı temel özellikleri verilmiş ve bu uzaylarda trigonometrik polinomlarla en iyi ...
Bıçak, Zeynep
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SPARSE APPROXIMATION AND RECOVERY BY GREEDY ALGORITHMS IN BANACH SPACES
Forum of Mathematics, Sigma, 2014 We study sparse approximation by greedy algorithms. We prove the Lebesgue-type inequalities for the weak Chebyshev greedy algorithm (WCGA), a generalization of the weak orthogonal matching pursuit to the case of a Banach space.
V. N. TEMLYAKOV
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Property Preservation and Quality Measures in Meta-Models. [PDF]
This thesis consists of three parts. Each part considers different sorts of meta-models. In the first part so-called Sandwich models are considered. In the second part Kriging models are considered. Finally, in the third part, (trigonometric) Polynomials
Siem, A.Y.D.
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Approximation and Interpolation of Singular Measures by Trigonometric Polynomials
Constructive ApproximationAbstractComplex valued measures of finite total variation are a powerful signal model in many applications. Restricting to the d-dimensional torus, finitely supported measures can be exactly recovered from their trigonometric moments up to some order if this order is large enough. Here, we consider the approximation of general measures, e.g., supported
Paul Catala +3 more
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On Best Multiplier Approximation of k-Monotone by Trigonometric Polynomial
Al-Mustansiriyah Journal of ScienceThe main goal of this paper is to study the degree of the best multiplier approximation of monotone unbounded functions in L_(p,λ_n)-space on the closed interval [-π,π] by means of K-functional, which we represented with, K(f,L_(p,λ_n ),W_(p,λ_n)^1,W ̃_(
Saheb K. Al-Saidy +3 more
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On the approximation by trigonometric polynomials in weighted Lorentz spaces
Journal of Function Spaces and Applications, 2010 We obtain estimates of structural characteristics of 2π-periodic functions by the best trigonometric approximations in weighted Lorentz spaces, and show that the order of generalized modulus of smoothness depends not only on the rate of the best ...
Vakhtang Kokilashvili, Yunus E. Yildirir
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Trigonometric approximation and uniform distribution modulo one
, 1988 We construct n n -dimensional versions of the Beurling and Selberg majorizing and minorizing functions and use them to prove results on trigonometric approximation and to prove an n n -dimensional version of the Erdös ...
Todd Cochrane
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A Levinson-Galerkin algorithm for regularized trigonometric approximation
, 1999 Trigonometric polynomials are widely used for the approximation of a smooth function $f$ from a set of nonuniformly spaced samples $\{f(x_j)\}_{j=0}^{N-1}$.
Strohmer, Thomas
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Efficient Cartesian Path Approximation for Robots Using Trigonometric Splines
, 1994 A smooth approximation of a desired robot path can be realized by interpolating a sequence of joint-space knots with a trigonometric spline. In this paper we derive the computational effort required for the formulation of trigonometric splines and show ...
Isik, Can, Simon, Daniel J.
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