The Uniform Approximation of a Function and Its Derivatives by Polynomials

The Uniform Approximation of a Function and Its Derivatives by Polynomials PDF Author: Frederick James Schuurmann
Publisher:
ISBN:
Category : Functions
Languages : en
Pages : 212

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The Uniform Approximation of a Function and Its Derivatives by Polynomials

The Uniform Approximation of a Function and Its Derivatives by Polynomials PDF Author: Frederick James Schuurmann
Publisher:
ISBN:
Category : Functions
Languages : en
Pages : 212

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Book Description


Theory of Uniform Approximation of Functions by Polynomials

Theory of Uniform Approximation of Functions by Polynomials PDF Author: Vladislav K. Dzyadyk
Publisher: Walter de Gruyter
ISBN: 3110208245
Category : Mathematics
Languages : en
Pages : 497

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Book Description
A thorough, self-contained and easily accessible treatment of the theory on the polynomial best approximation of functions with respect to maximum norms. The topics include Chebychev theory, Weierstraß theorems, smoothness of functions, and continuation of functions.

Approximation of Functions

Approximation of Functions PDF Author: G. G. Lorentz
Publisher: American Mathematical Society
ISBN: 1470474948
Category : Mathematics
Languages : en
Pages : 200

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Book Description
This is an easily accessible account of the approximation of functions. It is simple and without unnecessary details, but complete enough to include the classical results of the theory. With only a few exceptions, only functions of one real variable are considered. A major theme is the degree of uniform approximation by linear sets of functions. This encompasses approximations by trigonometric polynomials, algebraic polynomials, rational functions, and polynomial operators. The chapter on approximation by operators does not assume extensive knowledge of functional analysis. Two chapters cover the important topics of widths and entropy. The last chapter covers the solution by Kolmogorov and Arnol?d of Hilbert's 13th problem. There are notes at the end of each chapter that give information about important topics not treated in the main text. Each chapter also has a short set of challenging problems, which serve as illustrations.

An Introduction to the Approximation of Functions

An Introduction to the Approximation of Functions PDF Author: Theodore J. Rivlin
Publisher: Courier Corporation
ISBN: 9780486640693
Category : Mathematics
Languages : en
Pages : 164

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Book Description
Mathematics of Computing -- Numerical Analysis.

Interpolation and Approximation

Interpolation and Approximation PDF Author: Philip J. Davis
Publisher: Courier Corporation
ISBN: 0486624951
Category : Mathematics
Languages : en
Pages : 418

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Book Description
Intermediate-level survey covers remainder theory, convergence theorems, and uniform and best approximation. Other topics include least square approximation, Hilbert space, orthogonal polynomials, theory of closure and completeness, and more. 1963 edition.

Polynomial Approximation of Differential Equations

Polynomial Approximation of Differential Equations PDF Author: Daniele Funaro
Publisher: Springer Science & Business Media
ISBN: 3540467831
Category : Science
Languages : en
Pages : 315

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Book Description
This book is devoted to the analysis of approximate solution techniques for differential equations, based on classical orthogonal polynomials. These techniques are popularly known as spectral methods. In the last few decades, there has been a growing interest in this subject. As a matter offact, spectral methods provide a competitive alternative to other standard approximation techniques, for a large variety of problems. Initial ap plications were concerned with the investigation of periodic solutions of boundary value problems using trigonometric polynomials. Subsequently, the analysis was extended to algebraic polynomials. Expansions in orthogonal basis functions were preferred, due to their high accuracy and flexibility in computations. The aim of this book is to present a preliminary mathematical background for be ginners who wish to study and perform numerical experiments, or who wish to improve their skill in order to tackle more specific applications. In addition, it furnishes a com prehensive collection of basic formulas and theorems that are useful for implementations at any level of complexity. We tried to maintain an elementary exposition so that no experience in functional analysis is required.

Algebraic Approximation: A Guide to Past and Current Solutions

Algebraic Approximation: A Guide to Past and Current Solutions PDF Author: Jorge Bustamante
Publisher: Springer Science & Business Media
ISBN: 3034801947
Category : Mathematics
Languages : en
Pages : 212

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Book Description
This book contains an exposition of several results related with direct and converse theorems in the theory of approximation by algebraic polynomials in a finite interval. In addition, some facts concerning trigonometric approximation that are necessary for motivation and comparisons are included. The selection of papers that are referenced and discussed document some trends in polynomial approximation from the 1950s to the present day.

Constructive Function Theory: Uniform approximation

Constructive Function Theory: Uniform approximation PDF Author: Isidor Pavlovich Natanson
Publisher:
ISBN:
Category : Functions
Languages : en
Pages : 252

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Book Description


Uniform Approximations by Trigonometric Polynomials

Uniform Approximations by Trigonometric Polynomials PDF Author: Alexander I. Stepanets
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110926032
Category : Mathematics
Languages : en
Pages : 496

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Book Description
The theory of approximation of functions is one of the central branches in mathematical analysis and has been developed over a number of decades. This monograph deals with a series of problems related to one of the directions of the theory, namely, the approximation of periodic functions by trigonometric polynomials generated by linear methods of summation of Fourier series. More specific, the following linear methods are investigated: classical methods of Fourier, Fejir, Riesz, and Roginski. For these methods the so-called Kolmogorov-Nikol'skii problem is considered, which consists of finding exact and asymptotically exact qualities for the upper bounds of deviations of polynomials generated by given linear methods on given classes of 2?-periodic functions. Much attention is also given to the multidimensional case. The material presented in this monograph did not lose its importance since the publication of the Russian edition (1981). Moreover, new material has been added and several corrections were made. In this field of mathematics numerous deep results were obtained, many important and complicated problems were solved, and new methods were developed, which can be extremely useful for many mathematicians. All principle problems considered in this monograph are given in the final form, i.e. in the form of exact asymptotic equalities, and, therefore, retain their importance and interest for a long time.

Approximation of Functions by Polynomials and Splines

Approximation of Functions by Polynomials and Splines PDF Author: S. B. Stechkin
Publisher: American Mathematical Soc.
ISBN: 9780821830499
Category : Mathematics
Languages : en
Pages : 280

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Book Description
Papers and articles about polynomials and splines pproximation.