peak-flow
发表于 2025-3-30 09:58:21
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咽下
发表于 2025-3-30 14:58:26
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Permanent
发表于 2025-3-30 17:55:38
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CON
发表于 2025-3-31 00:11:01
Second Order Hamiltonian Systems,We consider the system . where . is a map from . = to . such that each component ..(.) is a periodic function in .. with period ., and the function . (., .) = . (., .., ⋯ , ..) is continuous from . to . with . For each . the function . (., .) is periodic in . with period ..
Coeval
发表于 2025-3-31 02:53:17
Custom Monotonicity Methods,Consider the problem . where . is a bounded domain whose boundary is a smooth manifold, and .(., .) is a continuous function on . The following theorem will be a corollary of the results of this chapter.
intertwine
发表于 2025-3-31 09:02:57
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Decimate
发表于 2025-3-31 11:17:50
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滔滔不绝地讲
发表于 2025-3-31 14:19:26
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Insatiable
发表于 2025-3-31 20:54:59
Radially Symmetric Wave Equations,In this chapter we study periodic solutions of the Dirichlet problem for the semilinear wave equation . where
事物的方面
发表于 2025-3-31 22:20:37
Multiple Solutions,A typical characteristic of nonlinear problems is the fact that many times there are multiple solutions. Usually it is difficult to obtain any solutions, let alone more than one. In general, it is much harder to determine when there are even two.