apropos
发表于 2025-3-23 10:55:59
Variational principlesIn this chapter we show that the motions of a newtonian potential system are extremals of a variational principle, “Hamilton’s principle of least action.”
使隔离
发表于 2025-3-23 17:24:45
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阻塞
发表于 2025-3-23 19:08:03
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cunning
发表于 2025-3-24 01:57:21
Symplectic manifoldsA symplectic structure on a manifold is a closed nondegenerate differential 2-form. The phase space of a mechanical system has a natural symplectic structure.
无情
发表于 2025-3-24 03:43:20
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保全
发表于 2025-3-24 10:00:59
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轻而薄
发表于 2025-3-24 14:31:19
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固执点好
发表于 2025-3-24 17:16:16
Introduction to perturbation theoryetely solvable “unperturbed” problems. These methods can be easily justified if we are investigating motion over a small interval of time. Relatively little is known about how far we can trust the conclusions of perturbation theory in investigating motion over large or infinite intervals of time.
Galactogogue
发表于 2025-3-24 22:50:32
https://doi.org/10.1007/978-1-4757-2063-1Lagrangian mechanics; Mathematische Physik; Mechanik; Rigid body; Vector field; classical mechanics; diffe
下边深陷
发表于 2025-3-25 02:16:32
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