铲除
发表于 2025-3-21 16:19:55
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syring
发表于 2025-3-21 20:53:28
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昏睡中
发表于 2025-3-22 03:29:24
Louis Anthony Cox Jrscalar 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
Inordinate
发表于 2025-3-22 05:26:01
.The only background required is a course on differential ma.This monograph could be used for a graduate course on symplectic geometry as well as for independent study..The monograph starts with an introduction of symplectic vector spaces, followed by symplectic manifolds and then Hamiltonian group
Vertical
发表于 2025-3-22 09:39:52
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aristocracy
发表于 2025-3-22 14:24:57
Louis Anthony Cox JrWe assume that the non-linearity . is of the form ., for some real valued function .. This equation can then be viewed as a Hamiltonian system with infinitely many degrees of freedom, and the problem of time periodic solutions is related to perturbation theory in the neighborhood of elliptic station
MURKY
发表于 2025-3-22 20:21:46
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包租车船
发表于 2025-3-22 23:24:07
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音乐等
发表于 2025-3-23 02:01:51
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musicologist
发表于 2025-3-23 07:39:38
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