Approximation Problems in Analysis and Probability - 1st Edition - ISBN: 9780444880215, 9780080872704

Approximation Problems in Analysis and Probability, Volume 159

1st Edition

Authors: M.P. Heble
eBook ISBN: 9780080872704
Imprint: North Holland
Published Date: 1st January 1989
Page Count: 244
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Table of Contents

Weierstrass-Stone Theorem and Generalisations - A Brief Survey. Weierstrass-Stone Theorem. Closure of a Module - The Weighted Approximation Problem. Criteria of Localisability. A Differentiable Variant of the Stone-Weierstrass Theorem. Further Differentiable Variants of the Stone-Weierstrass Theorem.

Strong Approximation in Finite-Dimensional Spaces. H. Whitney's Theorem on Analytic Approximation. C∞- Approximation in a Finite-Dimensional Space.

Strong Approximation in Infinite-Dimensional Spaces. Kurzweil's Theorems on Analytic Approximation. Smoothness Properties of Norms in Lp-Spaces. C∞-Partitions of Unity in Hilbert Space. Theorem of Bonic and Frampton. Smale's Theorem. Theorem of Eells and McAlpin. Contributions of J. Wells and K. Sundaresan. Theorems of Desolneux-Moulis. Ck-Approximation of Ck by C∞ - A Theorem of Heble. Connection Between Strong Approximation and Earlier Ideas of Bernstein-Nachbin. Strong Approximation - Other Directions.

Approximation Problems in Probability. Bernstein's Proof of Weierstrass' Theorem. Some Recent Bernstein-Type Approximation Results. A Theorem of H. Steinhaus. The Wiener Process or Brownian Motion. Jump Processes - A Theorem of Skorokhod. Appendices:

  1. Topological Vector Spaces.
  2. Differential Calculus in Banach Spaces.
  3. Differentiable Banach Manifolds.
  4. Probability Theory. Bibliography. Index.

Description

This is an exposition of some special results on analytic or C∞-approximation of functions in the strong sense, in finite- and infinite-dimensional spaces. It starts with H. Whitney's theorem on strong approximation by analytic functions in finite-dimensional spaces and ends with some recent results by the author on strong C∞-approximation of functions defined in a separable Hilbert space. The volume also contains some special results on approximation of stochastic processes. The results explained in the book have been obtained over a span of nearly five decades.


Details

No. of pages:
244
Language:
English
Copyright:
© North Holland 1989
Published:
Imprint:
North Holland
eBook ISBN:
9780080872704

Reviews

@from:R.M. Aron @qu:...its treatment of approximation in infinite-dimensional spaces provides a welcome, different approach which supplements the existing body of work in this field. @source:Mathematical Reviews @qu:The author has made important contributions... @source:Zentralblatt für Mathematik


About the Authors

M.P. Heble Author