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This book presents a thorough, systematic introduction to combining approximation theory and q-Calculus with applications, using well-known operators. At the core of the monograph lie many applications of q-calculus in the theory of approximation.

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The approximation of functions by linear positive operators is an important research topic in general mathematics and it also provides powerful tools to application areas such as computer-aided geometric design, numerical analysis, and solutions of differential equations. q-Calculus is a generalization of many subjects, such as hypergeometric series, complex analysis, and particle physics. __This monograph is an introduction to combining approximation theory and q-Calculus with applications, by using well- known operators. The presentation is systematic and the authors include a brief summary of the notations and basic definitions of q-calculus before delving into more advanced material. The many applications of q-calculus in the theory of approximation, especially on various operators, which includes convergence of operators to functions in real and complex domain_ forms the gist of the book.

This book is suitable for researchers and students in mathematics, physics and engineering, and for professionals who would enjoy exploring the host of mathematical techniques and ideas that are collected and discussed in the book.

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Introduction of q-calculus.- q-Discrete operators and their results.- q-Integral operators.- q-Bernstein type integral operators.- q-Summation-integral operators.- Statistical convergence of q-operators.- q-Complex operators.

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From the reviews:

"In the book under review, the authors collect up-to-date and important results on the q-type positive linear operators. The book includes many mathematical proof techniques and ideas and it may serve as one of the most useful reference books in this field. Therefore it can be recommended to graduate students and postgraduate researchers and in mathematics, physics and engineering." (Ogün Dogru, Mathematical Reviews, March, 2014)

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