颠簸地移动 发表于 2025-3-25 05:46:16

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杠杆 发表于 2025-3-25 09:14:40

Einführung in die pharmazeutische Chemiee show that a compact, simply connected Riemannian 4- or 5-manifold of quasipositive curvature and maximal symmetry rank must be diffeomorphic to the 4-sphere, complex projective plane or the 5-sphere.

Excise 发表于 2025-3-25 12:37:21

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Nmda-Receptor 发表于 2025-3-25 19:07:23

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bleach 发表于 2025-3-25 23:55:26

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Gorilla 发表于 2025-3-26 02:13:58

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针叶 发表于 2025-3-26 05:46:42

An Introduction to Exterior Differential Systems,ior differential systems. Moreover we discuss the algebraic properties of the Spencer cohomology associated to an exterior differential system and sketch a proof of the theorem of Cartan–Kähler about the analytical solutions to an analytical exterior differential system.

谈判 发表于 2025-3-26 12:27:18

Physikalisch-chemische Natur der Schlacken,alisation of the notion of a 3-Sasakian manifold. The examples discussed are related to the theory of isoparametric hypersurfaces of spheres with four principal curvatures. These examples carry Einstein metrics and in some special cases carry metrics with positive sectional curvature.

Conspiracy 发表于 2025-3-26 13:37:25

Lectures on ,-Sasakian Manifolds,alisation of the notion of a 3-Sasakian manifold. The examples discussed are related to the theory of isoparametric hypersurfaces of spheres with four principal curvatures. These examples carry Einstein metrics and in some special cases carry metrics with positive sectional curvature.

社团 发表于 2025-3-26 18:34:49

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查看完整版本: Titlebook: Geometry of Manifolds with Non-negative Sectional Curvature; Editors: Rafael Herr Owen Dearricott,Fernando Galaz-García,Wolfgang Zil Book 2