GERD847 发表于 2025-3-21 17:35:52

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Aprope 发表于 2025-3-21 21:11:37

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并置 发表于 2025-3-22 03:45:50

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征税 发表于 2025-3-22 07:54:59

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Angioplasty 发表于 2025-3-22 09:44:59

Entwurfsatlas Schulen und Kindergärten is to assume that the unknown function u = u(χ, .) (we assume that the independent variables are χ and .) in an initial boundary value problem can be written as a product of a function of χ and a function of ., that is, .. Thus, the variables separate. If the method is to be successful, when this p

Interstellar 发表于 2025-3-22 16:03:38

Undergraduate Texts in Mathematicshttp://image.papertrans.cn/b/image/160024.jpg

制定法律 发表于 2025-3-22 18:17:15

Applied Partial Differential Equations978-1-4684-0533-0Series ISSN 0172-6056 Series E-ISSN 2197-5604

Outshine 发表于 2025-3-22 22:24:28

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坚毅 发表于 2025-3-23 01:31:57

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清洗 发表于 2025-3-23 08:29:22

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查看完整版本: Titlebook: Applied Partial Differential Equations; J. David Logan Textbook 19981st edition Springer-Verlag New York, Inc. 1998 Boundary value problem