Ointment
发表于 2025-3-25 05:51:12
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heirloom
发表于 2025-3-25 08:31:33
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Limousine
发表于 2025-3-25 12:03:56
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勋章
发表于 2025-3-25 16:27:03
Approximate Symmetries of Partial Differential Equations,ension of Lie’s theory to situations in which a small perturbation of the original equation is encountered. For such cases, the question arises of how the point symmetries or the group of the equations are altered if a small perturbation is added to the original equation. This question initiated the
aneurysm
发表于 2025-3-25 20:14:37
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儿童
发表于 2025-3-26 01:43:12
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粗鄙的人
发表于 2025-3-26 06:15:03
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古董
发表于 2025-3-26 09:25:52
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蛙鸣声
发表于 2025-3-26 13:22:04
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来就得意
发表于 2025-3-26 17:23:54
Book 2000ifferential equations. The theoretical background of physics is illustrated by modem methods of computer algebra. The presentation of the material in the book is based on Mathematica 3.0 note books. The entire printed version of this book is available on the accompanying CD. The text is presented i