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Statements

Subject Item
dbr:Covariant_classical_field_theory
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rdfs:label
Covariant classical field theory 协变经典场论
rdfs:comment
近年来，协变经典场论又引起了研究者的兴趣。动力学在这里用有限维空间的在时空中的给定时间点上的场来表述。射流丛现在被认为是这种表述的正确定义域。本文给出一阶经典场论的协变表述的一些几何结构。 In mathematical physics, covariant classical field theory represents classical fields by sections of fiber bundles, and their dynamics is phrased in the context of a finite-dimensional space of fields. Nowadays, it is well known that jet bundles and the variational bicomplex are the correct domain for such a description. The Hamiltonian variant of covariant classical field theory is the covariant Hamiltonian field theory where momenta correspond to derivatives of field variables with respect to all world coordinates. Non-autonomous mechanics is formulated as covariant classical field theory on fiber bundles over the time axis ℝ.
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In mathematical physics, covariant classical field theory represents classical fields by sections of fiber bundles, and their dynamics is phrased in the context of a finite-dimensional space of fields. Nowadays, it is well known that jet bundles and the variational bicomplex are the correct domain for such a description. The Hamiltonian variant of covariant classical field theory is the covariant Hamiltonian field theory where momenta correspond to derivatives of field variables with respect to all world coordinates. Non-autonomous mechanics is formulated as covariant classical field theory on fiber bundles over the time axis ℝ. 近年来，协变经典场论又引起了研究者的兴趣。动力学在这里用有限维空间的在时空中的给定时间点上的场来表述。射流丛现在被认为是这种表述的正确定义域。本文给出一阶经典场论的协变表述的一些几何结构。
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