兽群
发表于 2025-3-28 17:05:53
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敬礼
发表于 2025-3-28 22:30:13
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远足
发表于 2025-3-29 01:14:33
A Singularly Perturbed Turning Point Problem,ins positive are now commonly called “singular perturbation problems.” The condition that the order remain positive for ∈ = 0 is not a very distinguishing property of the differential equation as such. The equation . . a constant,for instance, which will be examined closely in the next section, becomes .under the simple change of variables
极少
发表于 2025-3-29 04:46:10
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清楚说话
发表于 2025-3-29 07:32:28
978-1-4612-7008-9Springer Science+Business Media New York 1985
Dictation
发表于 2025-3-29 14:51:14
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Hyperopia
发表于 2025-3-29 16:45:06
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extinguish
发表于 2025-3-29 20:35:40
Connection Problems,a , ; Iwano and Sibuya ; Iwano , ; Olver , , ; Nakano ; and Nishimoto —. In this account only differential equations of the form.with a turning point at x = 0 will be discussed. The known results for systems of higher order are less satisfying and more complicated.
百灵鸟
发表于 2025-3-30 00:19:07
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注意到
发表于 2025-3-30 07:15:37
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