“主象征”的概念、定义、翻译、参考文献-科学参考

单词	主象征
释义	主象征 Mathematics ＞偏微分方程＞偏微分方程一般理论＞释义 principal symbol主象征＞微分几何学＞释义 principal symbol主象征 principal symbol主象征^†
随便看	invariance theory invariance thesis invariant invariant amplitude invariant approach invariant attracting set invariant average invariant basis property invariant bilinear function invariant boundary invariant central manifold invariant circle invariant class of groups invariant complement invariant component invariant cone invariant continuation invariant curve invariant decision function invariant decision problem invariant decision procedure invariant decomposition invariant definition invariant delta-function invariant density

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