黎曼几何 [Riemannian Geometry] 下载 mobi epub pdf 电子书 2025

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　　《黎曼几何》非常值得一读。

内容简介

　　The object of this book is to familiarize the reader with the basic language of and some fundamental theorems in Riemannian Geometry. To avoid referring to previous knowledge of differentiable manifolds， we include Chapter 0， which contains those concepts and results on differentiable manifolds which are used in an essential way in the rest of the book。
　　The first four chapters of the book present the basic concepts of Riemannian Geometry (Riemannian metrics， Riemannian connections， geodesics and curvature). A good part of the study of Riemannian Geometry consists of understanding the relationship between geodesics and curvature. Jacobi fields， an essential tool for this understanding， are introduced in Chapter 5. In Chapter 6 we introduce the second fundamental form associated with an isometric immersion， and prove a generalization of the Theorem Egregium of Gauss. This allows us to relate the notion of curvature in Riemannian manifolds to the classical concept of Gaussian curvature for surfaces。

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目录

Preface to the first edition
Preface to the second edition
Preface to the English edition
How to use this book
CHAPTER 0-DIFFERENTIABLE MANIFOLDS
1. Introduction
2. Differentiable manifolds；tangent space
3. Immersions and embeddings；examples
4. Other examples of manifolds，Orientation
5. Vector fields； brackets，Topology of manifolds

CHAPTER 1-RIEMANNIAN METRICS
1. Introduction
2. Riemannian Metrics

CHAPTER 2-AFFINE CONNECTIONS；RIEMANNIAN CONNECTIONS
1. Introduction
2. Affine connections
3. Riemannian connections

CHAPTER 3-GEODESICS；CONVEX NEIGHBORHOODS
1．Introduction
2．The geodesic flow
3．Minimizing properties ofgeodesics
4．Convex neighborhoods

CHAPTER 4-CURVATURE
1．Introduction
2．Curvature
3．Sectional curvature
4．Ricci curvature and 8calar curvature
5．Tensors 0n Riemannian manifoids

CHAPTER 5-JACOBI FIELDS
1．Introduction
2．The Jacobi equation
3．Conjugate points

CHAPTER 6-ISOMETRIC IMMERSl0NS
1．Introduction．
2．The second fundamental form
3．The fundarnental equations

CHAPTER 7-COMPLETE MANIFoLDS；HOPF-RINOW AND HADAMARD THEOREMS
1．Introduction．
2．Complete manifolds；Hopf-Rinow Theorem．
3．The Theorem of Hadamazd．

CHAPTER 8-SPACES 0F CONSTANT CURVATURE
1．Introduction
2．Theorem of Cartan on the determination ofthe metric by mebns of the　curvature．
3．Hyperbolic space
4．Space forms
5．Isometries ofthe hyperbolic space；Theorem ofLiouville

CHAPTER 9一VARIATl0NS 0F ENERGY
1．Introduction．
2．Formulas for the first and second variations of enezgy
3．The theorems of Bonnet—Myers and of Synge-WeipJtein

CHAPTER 10-THE RAUCH COMPARISON THEOREM
1．Introduction
2．Ttle Theorem of Rauch．
3．Applications of the Index Lemma to immersions
4．Focal points and an extension of Rauch’s Theorem

CHAPTER 11—THE MORSE lNDEX THEOREM
1．Introduction
2.The Index Theorem

CHAPTER 12-THE FUNDAMENTAL GROUP OF MANIFOLDS 0F NEGATIVE CURVATURE
1．Introduction
2．Existence of closed geodesics
CHAPTER 13-THE SPHERE THEOREM
References
Index

前言/序言

黎曼几何 [Riemannian Geometry] 下载 mobi epub pdf txt 电子书 格式

评分☆☆☆☆☆

书很好，慢慢看

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微分几何学的产生和发展是和数学分析密切相连的。在这方面第一个做出贡献的是瑞士数学家欧拉。1736年他首先引进了平面曲线的内在坐标这一概念，即以曲线弧长这以几何量作为曲线上点的坐标，从而开始了曲线的内在几何的研究。

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评分☆☆☆☆☆

很好，是正版的，送货特别给力

评分☆☆☆☆☆

速度很快，但书皮有磨损

评分☆☆☆☆☆

印刷清楚，纸张质量不错，至于内容肯定是经典，GTM的书都是经典。学习黎曼几何的必备基础教材。

评分☆☆☆☆☆

贵一点儿，不过值得仔细读。且是活动期间拿下的，心理平衡了。

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截面曲率、里奇曲率以及数量曲率是非常重要的几何量。研究这些量与黎曼流形的几何性质以及拓扑性质之间的关系是黎曼几何的一个重要课题。例如，嘉当－阿达马定理断言：若一个n维单连通完备黎曼流形的截面曲率处处不大于零，那么它与Rn微分同胚。再如迈尔斯定理断言：若完备黎曼流形的里奇曲率处处大于一个正常数h，那么它必是紧流形而且基本群有限。W.克林格贝格和M.伯热证明的球定理断言：如果完备单连通n维黎曼流形M的截面曲率KM 满足，那么M与n维欧氏球面Sn同胚。这些结果显示了流形的拓扑性质与度量性质之间有密切的联系。在这方面还有许多未解决的问题。

评分☆☆☆☆☆

挺好的，下次有需要还是选择京东～～～

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