微分几何，高阶,不考虑时间变量，对空间求导，类似波

来源: marketreflections 于 2010-03-18 16:42:55 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

微分几何，高阶
不考虑时间变量，对空间求导，类似波

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