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Titlebook: Riemannian Geometry; Peter Petersen Textbook 19981st edition Springer Science+Business Media New York 1998 Riemannian geometry.Spinor.Tens

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发表于 2025-3-21 16:24:27 | 显示全部楼层 |阅读模式
书目名称Riemannian Geometry
编辑Peter Petersen
视频video
丛书名称Graduate Texts in Mathematics
图书封面Titlebook: Riemannian Geometry;  Peter Petersen Textbook 19981st edition Springer Science+Business Media New York 1998 Riemannian geometry.Spinor.Tens
描述This book is meant to be an introduction to Riemannian geometry. The reader is assumed to have some knowledge of standard manifold theory, including basic theory of tensors, forms, and Lie groups. At times we shall also assume familiarity with algebraic topology and de Rham cohomology. Specifically, we recommend that the reader is familiar with texts like [14] or[76, vol. 1]. For the readers who have only learned something like the first two chapters of [65], we have an appendix which covers Stokes‘ theorem, Cech cohomology, and de Rham cohomology. The reader should also have a nodding acquaintance with ordinary differential equations. For this, a text like [59] is more than sufficient. Most of the material usually taught in basic Riemannian geometry, as well as several more advanced topics, is presented in this text. Many of the theorems from Chapters 7 to 11 appear for the first time in textbook form. This is particularly surprising as we have included essentially only the material students ofRiemannian geometry must know. The approach we have taken deviates in some ways from the standard path. First and foremost, we do not discuss variational calculus, which is usually the sine
出版日期Textbook 19981st edition
关键词Riemannian geometry; Spinor; Tensor; curvature; manifold
版次1
doihttps://doi.org/10.1007/978-1-4757-6434-5
isbn_ebook978-1-4757-6434-5Series ISSN 0072-5285 Series E-ISSN 2197-5612
issn_series 0072-5285
copyrightSpringer Science+Business Media New York 1998
The information of publication is updating

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发表于 2025-3-21 21:11:54 | 显示全部楼层
Curvature,ng curvature is the central theme of Riemannian geometry. The idea of a Riemannian metric having curvature, while intuitively appealing and natural, is for most people the stumbling block for further progress into the realm of geometry.
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Sectional Curvature Comparison II, Gromoll. Next, we discuss Gromov’s finiteness theorem for bounds on Betti numbers and generators for the fundamental group Finally, we show that these techniques can be adapted to prove the Grove-Petersen homotopy finiteness theorem.
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Curvature,confine ourselves to infinitesimal considerations. The most important and often also least understood object of Riemannian geometry is that of the Riemannian connection. From this concept it will be possible to define curvature and more familiar items like gradients and Hessians of functions. Studyi
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Hypersurfaces,nvex im­mersions are embeddings of spheres. We then establish a connection between convexity and positivity of the intrinsic curvatures. This connection will enable us to see that ℂ.. and the Berger spheres are not even locally hypersurfaces in Euclidean space. We give a brief description of some cl
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