Smooth Functions and Maps - Makarov, Boris M.;Podkorytov, Anatolii N.
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The book contains a consistent and sufficiently comprehensive theory of smooth functions and maps insofar as it is connected with differential calculus.
The scope of notions includes, among others, Lagrange inequality, Taylor's formula, finding absolute and relative extrema, theorems on smoothness of the inverse map and on conditions of local invertibility, implicit function theorem, dependence and independence of functions, classification of smooth functions up to diffeomorphism. The concluding chapter deals with a more specific issue of critical values of smooth mappings.
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Produktbeschreibung
The book contains a consistent and sufficiently comprehensive theory of smooth functions and maps insofar as it is connected with differential calculus.

The scope of notions includes, among others, Lagrange inequality, Taylor's formula, finding absolute and relative extrema, theorems on smoothness of the inverse map and on conditions of local invertibility, implicit function theorem, dependence and independence of functions, classification of smooth functions up to diffeomorphism. The concluding chapter deals with a more specific issue of critical values of smooth mappings.

In several chapters, a relatively new technical approach is used that allows the authors to clarify and simplify some of the technically difficult proofs while maintaining full integrity. Besides, the book includes complete proofs of some important results which until now have only been published in scholarly literature or scientific journals (remainder estimates of Taylor's formula in a nonconvex area (Chapter I, §8), Whitney's extension theorem for smooth function (Chapter I, §11) and some of its corollaries, global diffeomorphism theorem (Chapter II, §5), results on sets of critical values of smooth mappings and the related Whitney example (Chapter IV).

The text features multiple examples illustrating the results obtained and demonstrating their accuracy. Moreover, the book contains over 150 problems and 19 illustrations.

Perusal of the book equips the reader to further explore any literature basing upon multivariable calculus.

Autorenporträt
Boris M. Makarov, Professor of the Saint Petersburg State University, Mathematics and Mechanics Faculty, Department of Mathematical Analysis. In 1996-2006, he was a member of the Editorial Board of the journal Functional Analysis and Its Applications of the Russian Academy of Sciences. In 2014, received the Saint Petersburg State University 'Pedagogic Excellency' award. In 2010, co-authored (with Anatolii N. Podkorytov) a book Lectures on Real Analysis published in English by Springer in 2013 under the title of Real Analysis: Measures, Integrals and Applications. Co-authored (with Maria G. Goluzina, Andrei A. Lodkin, and Anatolii N. Podkorytov) a book of problems Problems in Real Analysis published in Russian (two editions: 1992 and 2004), English (AMS, 1992), and French (Cassini, 2010).  Anatolii N. Podkorytov, Associate Professor of the Saint Petersburg State University, Mathematics and Mechanics Faculty, Department of Mathematical Analysis. Author of anumber of published works and frequent deliverer of talks on properties of series and Fourier transform of functions of several variables. In 2014, received the Saint Petersburg State University 'Pedagogic Excellency' award. In 2010, co-authored (with Boris M. Makarov) a book Lectures on Real Analysis published in English by Springer in 2013 under the title of Real Analysis: Measures, Integrals and Applications. Co-authored (with Maria G. Goluzina, Andrei A. Lodkin, and Boris M. Makarov) a book of problems Problems in Real Analysis published in Russian (two editions: 1992 and 2004), English (AMS, 1992), and French (Cassini, 2010).
Rezensionen
"This textbook is a thorough exposition of the theory of smooth mappings in Euclidean spaces. ... the book is addressed to undergraduate students who want to become familiar with the theory of smooth maps, as well as to university teachers in mathematical analysis. ... For the more advanced topics, the authors provide motivations for the pertinent problems at the beginning of the sections. All these sections are supplemented with a collection of well-presented examples and exercises." (Carlos Mudarra, Mathematical Reviews, November, 2022)