分析（第1捲） [Analysis 1] 下載 mobi epub pdf 電子書 2025

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內容簡介

　　The present book strives for clarity and transparency. Right from the begin-ning， it requires from the reader a willingness to deal with abstract concepts， as well as a considerable measure of self-initiative. For these e&，rts， the reader will be richly rewarded in his or her mathematical thinking abilities， and will possess the foundation needed for a deeper penetration into mathematics and its applications.
　　This book is the first volume of a three volume introduction to analysis. It de- veloped from. courses that the authors have taught over the last twenty six years at the Universities of Bochum， Kiel， Zurich， Basel and Kassel. Since we hope that this book will be used also for self-study and supplementary reading， we have included far more material than can be covered in a three semester sequence. This allows us to provide a wide overview of the subject and to present the many beautiful and important applications of the theory. We also demonstrate that mathematics possesses， not only elegance and inner beauty， but also provides efficient methods for the solution of concrete problems.

內頁插圖

目錄

Preface
Chapter Ⅰ Foundations
1 Fundamentals of Logic
2 Sets
Elementary Facts
The Power Set
Complement, Intersection and Union
Products
Families of Sets
3 Functions，
Simple Examples
Composition of Functions
Commutative Diagrams
Injections, Surjections and Bijections
Inverse Functions
Set Valued Functions
4 Relations and Operations
Equivalence Relations
Order Relations
Operations
5 The Natural Numbers
The Peano Axioms
The Arithmetic of Natural Numbers
The Division Algorithm
The Induction Principle
Recursive Definitions
6 Countability
Permutations
Equinumerous Sets
Countable Sets
Infinite Products
7 Groups and Homomorphisms
Groups
Subgroups
Cosets
Homomorphisms
Isomorphisms
8 R.ings, Fields and Polynomials
Rings
The Binomial Theorem
The Multinomial Theorem
Fields
Ordered Fields
Formal Power Series
Polynomials
Polynomial Functions
Division of Polynomiajs
Linear Factors
Polynomials in Several Indeterminates
9 The Rational Numbers
The Integers
The Rational Numbers
Rational Zeros of Polynomials
Square Roots
10 The Real Numbers
Order Completeness
Dedekind's Construction of the Real Numbers
The Natural Order on R
The Extended Number Line
A Characterization of Supremum and Infimum
The Archimedean Property
The Density of the Rational Numbers in R
nth Roots
The Density of the Irrational Numbers in R
Intervals
Chapter Ⅱ Convergence
Chapter Ⅲ Continuous Functions
Chapter Ⅳ Differentiation in One Variable
Chapter Ⅴ Sequences of Functions
Appendix Introduction to Mathematical Logic
Bibliography
Index

前言/序言

　　Logical thinking， the analysis of complex relationships， the recognition of under- lying simple structures which are common to a multitude of problems - these are the skills which are needed to do mathematics， and their development is the main goal of mathematics education.
　　Of course， these skills cannot be learned 'in a vacuum'. Only a continuous struggle with concrete problems and a striving for deep understanding leads to success. A good measure of abstraction is needed to allow one to concentrate on the essential， without being distracted by appearances and irrelevancies.
　　The present book strives for clarity and transparency. Right from the begin-ning， it requires from the reader a willingness to deal with abstract concepts， as well as a considerable measure of self-initiative. For these e&，rts， the reader will be richly rewarded in his or her mathematical thinking abilities， and will possess the foundation needed for a deeper penetration into mathematics and its applications.
　　This book is the first volume of a three volume introduction to analysis. It de- veloped from. courses that the authors have taught over the last twenty six years at the Universities of Bochum， Kiel， Zurich， Basel and Kassel. Since we hope that this book will be used also for self-study and supplementary reading， we have included far more material than can be covered in a three semester sequence. This allows us to provide a wide overview of the subject and to present the many beautiful and important applications of the theory. We also demonstrate that mathematics possesses， not only elegance and inner beauty， but also provides efficient methods for the solution of concrete problems.
　　Analysis itself begins in Chapter II. In the first chapter we discuss qLute thor- oughly the construction of number systems and present the fundamentals of linear algebra. This chapter is particularly suited for self-study and provides practice in the logical deduction of theorems from simple hypotheses. Here， the key is to focus on the essential in a given situation， and to avoid making unjustified assumptions.An experienced instructor can easily choose suitable material from this chapter to make up a course， or can use this foundational material as its need arises in the study of later sections.
　　……

分析（第1捲） [Analysis 1] 下載 mobi epub pdf txt 電子書 格式

評分☆☆☆☆☆

拓撲結構的基本概念如連通性、密實度和介紹瞭homeomorphisms早期使用作為一個基礎,證明將遠不及優雅的(和不直接)否則。例如,介值定理,證明瞭結果的連接的一個空間。一旦這是結果確定下來的普遍性,它討論瞭R。　　

評分☆☆☆☆☆

Hilbert space當然可以是有限維的，但是有限維的不很好玩。以為哪怕隻是一個topological vector space (over C or R) （就是一個嚮量空間和一個拓撲，而這個拓撲使得嚮量空間上的兩種運算連續），如果是有限維，那也和C^n或R^n是一樣的。（homeomorphic)

評分☆☆☆☆☆

注意Hilbert space一定是Banach space，而Hilbert space 和 Banach space都是特殊的topological vector space。的確，所以老一點的書都直接定義Hilbert space是l^2，因為那時都假設有一個可數的orthonormal basis。看謝惠民吧，那個什麼多維騎還是放一邊。不過答案隻有提示，很多答案可以在薛春華中找我看一本數學書大概三百頁厚，半個月看不完啊，一天也就看兩三頁，看得時間也不多，就兩三個鍾，還消化不良，有時候想趕快看越快看越學得少與不懂。你們都是怎麼看書的，來跟大傢分享下吧!

評分☆☆☆☆☆

l^2裏麵既然是實數數列，其定義便是從N到R的函數，怎麼可以是有限呢？否則這函數就不是well-defined的瞭。

評分☆☆☆☆☆

評分☆☆☆☆☆

一、不同人生階段、不同認知水平對應的“有效讀書”標準不一樣

評分☆☆☆☆☆

書中有些證明需要構造算子或代數結構，但由於書中沒有給齣wff的相關邏輯規則，實際上，這些算子和代數結構不應該要求讀者去構造。因為這本書並沒有告訴讀者如何去檢驗自己的構造是否閤理。

評分☆☆☆☆☆

一、不同人生階段、不同認知水平對應的“有效讀書”標準不一樣

評分☆☆☆☆☆

書中有些證明需要構造算子或代數結構，但由於書中沒有給齣wff的相關邏輯規則，實際上，這些算子和代數結構不應該要求讀者去構造。因為這本書並沒有告訴讀者如何去檢驗自己的構造是否閤理。

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