2005/01/08 | Zeuthen准则[Zeuthen's Rule]
类别(∑〖数学〗) | 评论(0) | 阅读(17) | 发表于 13:38
On an algebraic curve, the sum of the number of coincidences at a noncuspidal point C is the sum of the orders of the infinitesimal distances from a nearby point P to the corresponding points when the distance PC is taken as the principal infinitesimal.
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