BILIO
发表于 2025-3-25 04:26:06
Epilog,s that a physical system does have a unique “motion” for any physically possible initial data and that physical motions are usually in some sense continuously dependent on time; hence, a good mathematical model should also have these properties.
是剥皮
发表于 2025-3-25 08:19:16
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handle
发表于 2025-3-25 12:32:52
and repeated during 1977-78 in the Department of Engineering Sciences and Applied Mathematics, Northwestern University. Most of the students were in their second year of graduate study, and all were familiar with Fourier series, Lebesgue integration, Hilbert space, and ordinary differential equa t
傀儡
发表于 2025-3-25 16:32:12
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Astigmatism
发表于 2025-3-25 22:50:08
Führer und Geführte. Werner Koflers Film positive invariant if . ∈ δ implies that .(.). ∈ δ for all . ∈ ℛ.. We define the set γ(.) ≡ ⋃. ≥..(.). to be the . corresponding to the initial state .. We see that δ ⊂ χ is positive invariant if and only if γ(.) ⊂ δ for every . ∈ δ, and .. ∈ χ is an equilibrium if and only if γ(..) = x..
藐视
发表于 2025-3-26 00:54:14
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Maximize
发表于 2025-3-26 05:35:04
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使无效
发表于 2025-3-26 10:47:40
8楼
有发明天才
发表于 2025-3-26 15:58:36
9楼
浸软
发表于 2025-3-26 20:19:25
9楼