蝴蝶定理
- 网络butterfly theorem
蝴蝶定理-
从Desargues对合定理到蝴蝶定理
From the Desargues ' Involutory Theorem to the Butterfly Theorem
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蝴蝶定理的几种初等证法及其比较分析
Several Elementary Proof Methods of Butterfly Theorem and the Comparative Analysis
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从蝴蝶定理的证明看高等几何对初等几何的作用
The butterfly theorem under higher geometry viewpoint
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蝴蝶定理的射影证明及其推广
Projective Proof and Extension of Butterfly Theorem
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直线型蝴蝶定理的推广
Extension of the Butterfly Theorem for Linearity
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关于高维蝴蝶定理
The Butterfly Theorem in High Dimensional Space
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蝴蝶定理的衍变推广
Development and Generalization of the Butterfly Theorem
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利用距离几何方法将古典的蝴蝶定理推广到n维欧氏空间一般二次超曲面情形，同时也得到高维蝴蝶定理的逆定理。
The classical butterfly theorem is extended to the case of general quadratic hypersurface in n-dimensional ( Euclidean ) space , and the inverse of this theorem is given .