翅膀拍动
发表于 2025-3-23 11:15:26
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放肆的你
发表于 2025-3-23 16:55:07
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尖
发表于 2025-3-23 21:49:15
Riemannian Geometry of Contact and Symplectic Manifolds978-1-4757-3604-5Series ISSN 0743-1643 Series E-ISSN 2296-505X
遵循的规范
发表于 2025-3-24 00:30:34
0743-1643 ries have been out of print for some time and it seems appropriate that an expanded version of this material should become available. The present text deals with the Riemannian geometry of both symplectic and contact manifolds, although the book is more contact than symplectic. This work is based on
Nonflammable
发表于 2025-3-24 05:59:07
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CODE
发表于 2025-3-24 07:34:22
Contact Manifolds, manifold is orientable. Also . has rank 2. on the Grassmann algebra ∧ ... at each point . ∈ . and thus we have a 1-dimensional subspace, {. ∈ ...|.(...) = 0}, on which . ≠ 0 and which is complementary to the subspace on which . = 0. Therefore choosing .. in this subspace normalized by .(..) = 1 we
HARP
发表于 2025-3-24 14:33:19
Associated Metrics,rtant for our study; many of these were already mentioned in Chapter 1. For more detail the reader is referred to Gray and Hervella , Kobayashi-Nomizu and Kobayashi-Wu ; also, despite its classical nature, the book of Yano contains helpful information on man
Encephalitis
发表于 2025-3-24 14:54:27
,Submanifolds of Kähler and Sasakian Manifolds,c results. For a submanifold . of a Riemannian manifold (., .) we denote the induced metric by .. Then the Levi-Cività connection ∇ of . and the second fundamental form . are related to the ambient Levi-Cività connection ∇̃ by ..
激怒某人
发表于 2025-3-24 20:12:27
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安定
发表于 2025-3-25 00:59:11
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