Limits : a new approach to real analysis

Alan F. Beardon

This book is intended as an undergraduate text on real analysis and includes all the standard material such as sequences, infinite series, continuity, differentiation, and integration, together with worked examples and exercises. Despite the fact that there are hundreds of books on analysis on the market, by unifying and simplifying all the various notions of limit, the author has successfully presented a unique and novel approach to the subject matter, which has not previously appeared in book form. The author defines what is meant by a limit just once, and all of the subsequent limiting processes will be seen as special cases of this one definition.Accordingly, the subject matter attains a unity and coherence that is missing in the traditional approach. Students will be able to fully appreciate and understand the common source of the topics they are studying while also realizing that they are "variations on a theme" rather than essentially different topics, and therefore, will gain a better understanding of the subject. The book is divided into three sections. Part I contains preliminary material on sets, and on real and complex numbers.Part II starts with the definition of a limit and its basic properties, and continues with three basic results; the Intermediate Value Theorem, the Mean Value inequality, and the Cauchy Criterion, all of which are proved by bisection arguments. The last chapter in this section contains a detailed discussion of infinite series, including a treatment of unordered sums. Part III comprises the standard material in analysis, and because it follows from the basic ideas presented in the earlier section, much of the material progresses remarkably smoothly.

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[目次]

  • I Foundations.- 1 Sets and Functions.- 1.1 Sets.- 1.2 Ordered pairs.- 1.3 Functions.- 2 Real and Complex Numbers.- 2.1 Algebraic properties of real numbers.- 2.2 Order.- 2.3 Upper and lower bounds.- 2.4 Complex numbers.- 2.5 Notation.- II Limits.- 3 Limits.- 3.1 Introduction.- 3.2 Directed sets.- 3.3 The definition of a limit.- 3.4 Examples of limits.- 3.5 Sums, products, and quotients of limits.- 3.6 Limits and inequalities.- 3.7 Functions tending to infinity.- 4 Bisection Arguments.- 4.1 Nested intervals.- 4.2 The Intermediate Value Therem.- 4.3 The Mean Value Inequality.- 4.4 The Cauchy Criterion.- 5 Infinite Series.- 5.1 Infinite series.- 5.2 Unordered sums.- 5.3 Absolute convergence and rearrangements.- 5.4 The Cauchy Product.- 5.5 Iterated sums.- 6 Periodic Functions.- 6.1 The exponential function.- 6.2 The trigonometric functions.- 6.3 Periodicity and ?.- 6.4 The argument of a complex number.- 6.5 The logarithm.- III Analysis.- 7 Sequences.- 7.1 Convergent sequences.- 7.2 Some important examples.- 7.3 Bounded sequences.- 7.4 The Fundamental Theorem of Algebra.- 7.5 Unbounded sequences.- 7.6 Upper and lower limits.- 8 Continuous Functions.- 8.1 Continuous functions.- 8.2 Functions continuous on an interval.- 8.3 Monotonic functions.- 8.4 Uniform continuity.- 8.5 Uniform convergence.- 9 Derivatives.- 9.1 The derivative.- 9.2 The Chain Rule.- 9.3 The Mean Value Theorem.- 9.4 Inverse functions.- 9.5 Power series.- 9.6 Taylor series.- 10 Integration.- 10.1 The integral.- 10.2 Upper and lower integrals.- 10.3 Integrable functions.- 10.4 Integration and differentiation.- 10.5 Improper integrals.- 10.6 Integration and differentiation of series.- 11 ?, ?, e, and n!.- 11.1 The number e.- 11.2 The number ?.- 11.3 Euler's constant ?.- 11.4 Stirling's formula for n!.- 11.5 A series and an integral for ?.- Appendix: Mathematical Induction.- References.

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この本の情報

書名 Limits : a new approach to real analysis
著作者等 Beardon, Alan F.
Beardon A.F.
シリーズ名 Undergraduate texts in mathematics
出版元 Springer
刊行年月 c1997
ページ数 ix, 189 p.
大きさ 25 cm
ISBN 0387982744
NCID BA33842141
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言語 英語
出版国 アメリカ合衆国
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