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nl95272006鐵蟲 (小有名氣)
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[求助]
如何求解偏微分方程組的特征線方程
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請(qǐng)教給位大神,如何用特征線方法將偏微分方程變成常微分方程,本人不是數(shù)學(xué)專業(yè),請(qǐng)問各位大神,有沒有什么比較好的關(guān)于偏微分方程的介紹的,其中對(duì)特征線方法要有比較好的介紹,感謝 |

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This looks like some equation of conservation law, you can write it in the form du/dt + A du/dx = f(u, x), if u = [p, w, T]^t, then in principle you can diagonalize A = X^{-1}DX, and transform the variable from u to Xu, namely, the characteristic variables. I remember there is a book by 水鴻壽,名字大概是一維雙曲型守恒律。 |
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