應用泛函分析（第2捲）（英文版） [Applied Functional AnalysisMa:In Principles and Their Applications] 下載 mobi epub pdf 電子書 2024

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內容簡介

　　More precisely， by （i）， I mean a systematic presentation of the materialgoverned by the desire for mathematical perfection and completeness ofthe results. In contrast to （i）， approach （ii） starts out from the question"What are the most important applications？" and then tries to answer thisquestion as quickly as possible. Here， one walks directly on the main roadand does not wander into all the nice and interesting side roads.
　　The present book is based on the second approach. It is addressed toundergraduate and beginning graduate students of mathematics， physics，and engineering who want to learn how functional analysis elegantly solvesma~hematical problems that are related to our real world azld that haveplayed an important role in the history of mathematics. The reader shouldsense that the theory is being developed， not simply for its own sake， butfor the effective solution of concrete problems.

內頁插圖

目錄

Preface
Contents of AMS Volume 108
1　The Hahn-Banach Theorem Optimization Problems
1.1 The Hahn-Banach Theorem
1.2 Applications to the Separation of Convex Sets
1.3 The Dual Space C[a, b]*
1.4 Applications to the Moment Problem
1.5 Minimum Norm Problems and Duality Theory
1.6 Applications to Cebysev Approximation
1.7 Applications to the Optimal Control of Rockets
2 Variational Principles and Weak Convergence
2.1 The nth Variation
2.2 Necessary and Sufficient Conditions for Local Extrema and the Classical Calculus of Variations
2.3 The Lack of Compactness in Infinite-Dimensional Banach Spaces
2.4 Weak Convergence
2.5 The Generalized Weierstrass Existence Theorem
2.6 Applications to the Calculus of Variations
2.7 Applications to Nonlinear Eigenvalue Problems
2.8 Reflexive Banach Spaces
2.9 Applications to Convex Minimum Problems and Variational Inequalities
2.10 Applications to Obstacle Problems in Elasticity
2.11 Saddle Points
2.12 Applications to Dui~lity Theory
2.13 The von Neumann Minimax Theorem on the Existence of Saddle Points
2.14 Applications to Game Theory
2.15 The Ekeland Principle about Quasi-Minimal Points
2.16 Applications to a General Minimum Principle via the Palais-Smale Condition
2.17 Applications to the Mountain Pass Theorem
2.18 The Galerkin Menhod and Nonlinear Monotone Operators
2.19 Symmetries and Conservation Laws (The Noether Theorem
2.20 The Basic Ideas of Gauge Field Theory
2.21 Representations of Lie Algebras
2.22 Applications to Elementary Particles
3 Principles of Linear Functional Analysis
3.1 The Baire Theorem
3.2 Application to the Existence of Nondifferentiable Continuous Functions
3.3 The Uniform Boundedness Theorem
3.4 Applications to Cubature Formulas
3.5 The Open Mapping Theorem
3.6 Product Spaces
3.7 The Closed Graph Theorem
3.8 Applications to Factor Spaces
3.9 Applications to Direct Sums and Projections
3.10 Dual Operators
3.11 The Exactness of the Duality Functor
3.12 Applications to the Closed Range Theorem and to Fredholm Alternatives
4 The Implicit Function Theorem
4.1 m-Linear Bounded Operators
4.2 The Differential of Operators and the Fr~chet Derivative
4.3 Applications to Analytic Operators
4.4 Integration
4.5 Applications to the Taylor Theorem
4.6 Iterated Derivatives
4.7 The Chain Rule
4.8 The Implicit Function Theorem
4.9 Applications to Differential Equations
4.10 Diffeomorphisms and the Local Inverse Mapping Theorem
4.11 Equivalent Maps and the Linearization Principle
4.12 The Local Normal Form for Nonlinear Double Splitting Maps
4.13 The Surjective Implicit Function Theorem
4.14 Applications to the Lagrange Multiplier Rule
5 Fredholm Operators
5.1 Duality for Linear Compact Operators
5.2 The Riesz-Schauder Theory on Hilbert Spaces
5.3 Applications to Integral Equations
5.4 Linear Fredholm Operators
5.5 The Riesz-Schauder Theory on Banach Spaces
5.6 Applications to the Spectrum of Linear Compact Operators
5.7 The Parametrix
5.8 Applications to the Perturbation of Fredholm Operators
5.9 Applications to the Product Index Theorem
5.10 Fredholm Alternatives via Dual Pairs
5.11 Applications to Integral Equations and Boundary-Value Problems
5.12 Bifurcation Theory
5.13 Applications to Nonlinear Integral Equations
5.14 Applications to Nonlinear Boundary-Value Problems
5.15 Nonlinear Fredholm Operators
5.16 Interpolation Inequalities
5.17 Applications to the Navier-Stokes Equations References
List of Symbols
List of Theorems
List of Most Important Definitions
Subject Index

前言/序言

　　More precisely， by （i）， I mean a systematic presentation of the materialgoverned by the desire for mathematical perfection and completeness ofthe results. In contrast to （i）， approach （ii） starts out from the question"What are the most important applications？" and then tries to answer thisquestion as quickly as possible. Here， one walks directly on the main roadand does not wander into all the nice and interesting side roads.
　　The present book is based on the second approach. It is addressed toundergraduate and beginning graduate students of mathematics， physics，and engineering who want to learn how functional analysis elegantly solvesma~hematical problems that are related to our real world azld that haveplayed an important role in the history of mathematics. The reader shouldsense that the theory is being developed， not simply for its own sake， butfor the effective solution of concrete problems.

應用泛函分析（第2捲）（英文版） [Applied Functional AnalysisMa:In Principles and Their Applications] 下載 mobi epub pdf txt 電子書 格式

評分☆☆☆☆☆

泛函分析是20世紀30年代形成的數學分科，是從變分問題，積分方程和理論物理的研究中發展起來的。它綜閤運用函數論，幾何學，現代數學的觀點來研究無限維嚮量空間上的泛函，算子和極限理論。它可以看作無限維嚮量空間的解析幾何及數學分析。泛函分析在數學物理方程，概率論，計算數學等分科中都有應用，也是研究具有無限個自由度的物理係統的數學工具。

評分☆☆☆☆☆

希爾伯特空間可以利用以下結論完全分類，即對於任意兩個希爾伯特空間，若其基的基數相等，則它們必彼此同構。對於有限維希爾伯特空間而言，其上的連續綫性算子即是綫性代數中所研究的綫性變換。對於無窮維希爾伯特空間而言，其上的任何態射均可以分解為可數維度（基的基數為50）上的態射，所以泛函分析主要研究可數維度上的希爾伯特空間及其態射。希爾伯特空間中的一個尚未完全解決的問題是，是否對於每個希爾伯特空間上的算子，都存在一個真不變子空間。該問題在某些特定情況下的答案是肯定的。

評分☆☆☆☆☆

作者是泛函分析的大傢，還寫瞭一套非綫性泛函分析，值得買！

評分☆☆☆☆☆

微分的概念可以在巴拿赫空間中得到推廣，微分算子作用於其上的所有函數，一個函數在給定點的微分是一個連續綫性映射。

評分☆☆☆☆☆

泛函分析（Functional Analysis）是現代數學的一個分支，隸屬於分析學，其研究的主要對象是函數構成的空間。泛函分析是由對函數的變換（如傅立葉變換等）的性質的研究和對微分方程以及積分方程的研究發展而來的。使用泛函作為錶述源自變分法，代錶作用於函數的函數。巴拿赫（Stefan Banach）是泛函分析理論的主要奠基人之一，而數學傢兼物理學傢維多·沃爾泰拉（Vito Volterra）對泛函分析的廣泛應用有重要貢獻。

評分☆☆☆☆☆

書是好書，印刷質量一般

評分☆☆☆☆☆

一些專題講的較深入，要認真看看

評分☆☆☆☆☆

巴拿赫空間

評分☆☆☆☆☆

很好的書啊。很好的

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