chastise
发表于 2025-3-25 07:09:51
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STYX
发表于 2025-3-25 08:02:56
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Initial
发表于 2025-3-25 14:03:32
Nonclassical and Potential Symmetries for a Boussinesq Equation with Nonlinear Dispersiones are derived. We prove that the nonclassical method applied to this equation leads to new symmetries, which can not be obtained by Lie classical method. We also have written the equation in a conserved form and a new class of nonlocal symmetries have been obtained.
Water-Brash
发表于 2025-3-25 17:26:46
The Role of Invariant Manifolds in the Formation of Spiral Arms and Rings in Barred Galaxieshnique used in celestial mechanics to compute transfer orbits. Thus, our theory is based on the chaotic orbital motion driven by the invariant manifolds associated to the periodic orbits around the hyperbolic equilibrium points. In particular, spiral arms and outer rings are related to the presence
PLE
发表于 2025-3-25 20:00:21
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HILAR
发表于 2025-3-26 03:59:33
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乏味
发表于 2025-3-26 07:04:28
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异端邪说下
发表于 2025-3-26 12:30:50
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大都市
发表于 2025-3-26 13:27:05
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细微差别
发表于 2025-3-26 20:30:10
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