ODIUM
发表于 2025-3-25 03:32:43
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多余
发表于 2025-3-25 10:29:37
https://doi.org/10.1007/978-3-319-63847-8eories. In that reference the dynamics of fields was that corresponding to motions of a hypersurface Σ along the flow of a vector field . on a manifold .. The vector field was further assumed to be transverse to Σ. There are, however, several situations, where the transversality of . to Σ is not a n
航海太平洋
发表于 2025-3-25 15:16:29
The Physical Nature of the Skinscalar fields on . can be viewed as sections of a trivial bundle . In this theory a natural choice for the Lagrangian is the one, which is manifestly invariant under Poincaré transformations: .% MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfKttLearuqr1ngBPrgarmWu51MyVXgatC% vAUfeBSjuyZL2yd9gzLbvyNv2Ca
不发音
发表于 2025-3-25 15:58:50
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brassy
发表于 2025-3-25 21:10:40
978-3-642-07681-7Springer-Verlag Berlin Heidelberg 2002
使成核
发表于 2025-3-26 01:42:25
Hamiltonian Field Theory in the Radiating Regime978-3-540-45604-9Series ISSN 0940-7677
happiness
发表于 2025-3-26 04:28:56
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Foam-Cells
发表于 2025-3-26 11:42:08
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AVOID
发表于 2025-3-26 12:55:27
https://doi.org/10.1007/3-540-45604-XGravity; Hamiltonian Formalism in Classical Field Theory; Trautman-Bondi Mass; dynamical systems; dynami
Esalate
发表于 2025-3-26 18:57:31
https://doi.org/10.1007/978-1-4419-9449-3In this section we will consider the gravitational field on a space-time ., described by a metric tensor . ., of signature (-1, +1, +1, +1), which satisfies the vacuum Einstein equations: . .(.)= 0. (5.1)