功多汁水 发表于 2025-3-23 11:12:21
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Wolfram Ischebeck,Heinrich Ratscher theory.Many partial differential equations (PDEs) that arise in physics can be viewed as infinite-dimensional Hamiltonian systems. This monograph presents recent existence results of nonlinear oscillations of Hamiltonian PDEs, particularly of periodic solutions for completely resonant nonlinear w多嘴 发表于 2025-3-24 21:47:41
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