Approximation by Max-Product Type Operators

1. Front Matter

   Pages i-xv

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2. Introduction and Preliminaries

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 1-24

3. Approximation by Max-Product Bernstein Operators

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 25-158

4. Approximation by Max-Product Favard–Szász–Mirakjan Operators

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 159-188

5. Approximation by Max-Product Baskakov Operators

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 189-228

6. Approximation by Max-Product Bleimann–Butzer–Hahn Operators

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 229-243

7. Approximation by Max-Product Meyer–König and Zeller Operators

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 245-279

8. Approximation by Max-Product Interpolation Operators

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 281-325

9. Approximations by Max-Product Sampling Operators

   • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

   Pages 327-392

10. Global Smoothness Preservation Properties

    • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

    Pages 393-405

11. Possibilistic Approaches of the Max-Product Type Operators

    • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

    Pages 407-428

12. Max-Product Weierstrass Type Functions

    • Barnabás Bede, Lucian Coroianu, Sorin G. Gal

    Pages 429-447

13. Back Matter

    Pages 449-458

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This monograph presents a broad treatment of developments in an area of constructive approximation involving the so-called "max-product" type operators. The exposition highlights the max-product operators as those which allow one to obtain, in many cases, more valuable estimates than those obtained by classical approaches. The text considers a wide variety of operators which are studied for a number of interesting problems such as quantitative estimates, convergence, saturation results, localization, to name several.

Additionally, the book discusses the perfect analogies between the probabilistic approaches of the classical Bernstein type operators and of the classical convolution operators (non-periodic and periodic cases), and the possibilistic approaches of the max-product variants of these operators. These approaches allow for two natural interpretations of the max-product Bernstein type operators and convolution type operators: firstly, as possibilistic expectations of somefuzzy variables, and secondly, as bases for the Feller type scheme in terms of the possibilistic integral. These approaches also offer new proofs for the uniform convergence based on a Chebyshev type inequality in the theory of possibility.

Researchers in the fields of approximation of functions, signal theory, approximation of fuzzy numbers, image processing, and numerical analysis will find this book most beneficial. This book is also a good reference for graduates and postgraduates taking courses in approximation theory.

• interpolation operators
• Weierstrass type functions
• Baskakov operator
• Bleimann-Butzer-Hahn operator
• Bernstein operator
• max-product
• approximation max-product
• max-type operator
• constructive approximation
• possibilistic distribution
• information and communication, circuits

“It is very well written and organized, with clear and simple proofs together with some new mathematical techniques. Therefore it can be recommended as a textbook for graduate students and postgraduate researchers as well as a reference book for researchers and professionals working not only in approximation theory, mathematical analysis, and numerical analysis, but also in signal theory, image processing, sampling theory, and engineering.” (Harun Karsli, Mathematical Reviews, 2018)

• Department of Mathematics, DigiPen Institute of Technology, Redmond, USA

  Barnabás Bede

• Dept. of Math. and Compt. Sci., University of Oradea, Oradea, Romania

  Lucian Coroianu, Sorin G. Gal

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