2004/11/08 | Harnack定理[Harnack's Theorems]
类别(∑〖数学〗) | 评论(0) | 阅读(39) | 发表于 14:25
Let be the orders of singular points on a curve (Coolidge 1959, p. 56). Harnack's first theorem states that a real irreducible curve of order n cannot have more than

circuits (Coolidge 1959, p. 57).

Harnack's second theorem states that there exists a curve of every order with the maximum number of circuits compatible with that order and with a certain number of double points, provided that number is not permissible for a curve of lower order (Coolidge 1959, p. 61).
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