ALIEN
发表于 2025-3-23 11:28:35
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Congestion
发表于 2025-3-23 16:00:26
https://doi.org/10.1007/978-1-4419-9290-1ystems. The hard core of the theory, however, consists of ., which relate the metric field to matter. After a discussion of the physical meaning of the curvature tensor, we shall first give a simple physical motivation for the field equations and will then show that they are determined by only a few
anagen
发表于 2025-3-23 21:50:39
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图画文字
发表于 2025-3-24 01:51:48
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持久
发表于 2025-3-24 02:52:24
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Offbeat
发表于 2025-3-24 10:11:36
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Tortuous
发表于 2025-3-24 11:41:15
Dennis C. Mueller,Alfred Haid,Jürgen Weigandndefinitely negative. (For the critical masses of the white dwarfs, discussed in Sect. 6.2, the total energy becomes −∞.) This is not the case in GR. It is impossible to construct an object out of ordinary matter, i.e., matter with positive local energy density, whose total energy (including gravita
一再困扰
发表于 2025-3-24 18:54:04
https://doi.org/10.1007/978-3-658-05804-3long maps and their induced covariant derivatives, because this is used at various places in the book. For a convenient formulation we introduce the tangent bundle of a manifold, the prototype of a vector bundle. Applications to variations of curves will illustrate the usefulness of the concepts.
follicle
发表于 2025-3-24 21:08:57
Norbert StraumannThis book provides all the necessary mathematics and also the foundations of Einstein‘s theory; this makes it quite different from other monographs on Relativistic Astrophysics.Includes supplementary
Accede
发表于 2025-3-25 01:08:07
Interaction Between Supply and DemandThe discovery of the general theory of relativity (GR) has often been justly praised as one of the greatest intellectual achievements of a single human being. At the ceremonial presentation of Hubacher’s bust of A. Einstein in Zürich, W. Pauli said: