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Publisher:

Springer

Publication Date:

1980

Number of Pages:

351

Series:

Undergraduate Texts in Mathematics

Price:

39.95

ISBN:

978-0-387-90459-7

Category:

Textbook

The Basic Library List Committee recommends this book for acquisition by undergraduate mathematics libraries.

[Reviewed by , on ]

Allen Stenger

06/5/2008

This book occupies a niche between a calculus course and a full-blown real analysis course. Its charm is that it gives very thorough and leisurely explanations, in a discursive style: You just read along about some interesting properties of the real numbers and then find them codified as a definition or theorem, rather than being confronted with a mass of definitions, theorems, and proofs.

The book assumes the student has already been through calculus, but without the proofs. It presents most of the important ideas of real analysis without requiring any great conceptual leaps from a calculus course. It is very carefully positioned to lie between a non-rigorous calculus course and a real analysis course such as might be taught from Rudin's Principles of Mathematical Analysis or Apostol's *Mathematical Analysis*.

The book is mathematically not very ambitious, and at first glance it may look like there's not much here. I think the book should be viewed as a text for a bridge or transition course that happens to be about analysis, rather than an analysis course per se.

Certainly it has much less material than would normally be found in an analysis text. There's not much topology, no construction of the real numbers (there's a brief sketch of Dedekind cuts), no measure theory or Lebesgue integral, and no function spaces. The book depends almost totally on completeness of the reals for its proofs, although the Bolzano-Weierstrass theorem is introduced to back up uniform continuity, which is needed for integrability.

There are several Very Good Features:

- Lots of counterexamples. Most calculus books get the proof of the chain rule wrong, and Ross not only gives a correct proof but gives an example where the common mis-proof fails. There are also examples of failures of L'Hospital's rule and of non-integrable functions.
- Introduces limits of sequences first, and only then goes on to continuity
- Lengthy discussion of the Riemann-Stieltjes integral, which is very handy in mixed discrete-continuous problems and number theory and which most texts don't cover at all

The book has a number of optional sections, which tend to be dead ends in this book but are interesting in themselves and in a more advanced course would have many consequences. Most of the topology material is in this category. There's a complete proof of the Weierstrass approximation theorem (using Bernstein polynomials), which doesn't go anywhere in this book but is certainly a startling result.

Allen Stenger is a math hobbyist, library propagandist, and retired computer programmer. He volunteers in his spare time at MathNerds.com, a math help site that fosters inquiry learning. His mathematical interests are number theory and classical analysis.

Preface

Introduction

1 The Set **N** of Natural Numbers

2 The Set **Q** of Rational Numbers

3 The Set **R** of Real Numbers

4 The Completeness Axiom

5 The Symbols +∞ and –∞

6 *A Development of **R**

Sequences

7 Limits of Sequences

8 A Discussion about Proofs

9 Limit Theorems for Sequences

10 Monotone Sequences and Cauchy Sequences

11 Subsequences

12 lim sup's and lim inf's

13 *Some Topological Concepts in Metric Spaces

14 Series

15 Alternating Series and Integral Tests

16 *Decimal Expansions of Real Numbers

Continuity

17 Continuous Functions

18 Properties of Continuous Functions

19 Uniform Continuity

20 Limits of Functions

21 *More on Metric Spaces: Continuity

22 *More on Metric Spaces: Connectedness

Sequences and Series of Functions

23 Power Series

24 Uniform Convergence

25 More on Uniform Convergence

26 Differentiation and Integration of Power Series

27 *Weierstrass's Approximation Theorem

Differentiation

28 Basic Properties of the Derivative

29 The Mean Value Theorem

30 *L'Hospital's Rule

31 Taylor's Theorem

Integration

32 The Riemann Integral

33 Properties of the Riemann Integral

34 Fundamental Theorem of Calculus

35 *Riemann-Stieltjes Integrals

36 * Improper Integrals

37 *A Discussion of Exponents and Logarithms

Appendix on Set Notation

Selected Hints and Answers

References

Symbols Index

Index

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