MORPH 发表于 2025-3-26 23:33:04
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Graduate Texts in Mathematicshttp://image.papertrans.cn/i/image/474135.jpgLasting 发表于 2025-3-27 08:51:06
Model Riemannian Manifolds,folds” that should help to motivate the general theory. These manifolds are distinguished by having a high degree of symmetry. We begin by describing the most symmetric model spaces of all—Euclidean spaces, spheres, and hyperbolic spaces. Then we explore some more general classes of Riemannian manifolds with symmetry.Orthodontics 发表于 2025-3-27 11:45:55
,The Gauss–Bonnet Theorem,ms in Riemannian geometry, it asserts the equality of two very differently defined quantities on a compact Riemannian 2-manifold: the integral of the Gaussian curvature, which is determined by the local geometry, and . times the Euler characteristic, which is a global topological invariant.尊重 发表于 2025-3-27 16:51:32
978-3-030-80106-9Springer Nature Switzerland AG 2018regale 发表于 2025-3-27 19:18:45
Introduction to Riemannian Manifolds978-3-319-91755-9Series ISSN 0072-5285 Series E-ISSN 2197-5612笨拙的我 发表于 2025-3-27 23:24:58
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Connections,Before defining a notion of curvature that makes sense on arbitrary Riemannian manifolds, we need to study ., the generalizations to Riemannian manifolds of straight lines in Euclidean space. In this chapter, we introduce a new geometric construction called a ., which is an essential tool for defining geodesics.