摘要
利用微分几何中对一般曲面上点的分类来研究实二次曲面依点的类型的又一重要新组合,从而对二次曲面的形状有进一步的认识.
In this paper, using the classification for the point of general surface in differential geometry, a new combination that relies on the type of point on real conicoids is studied, and then can know more about the shape of conicoid.
出处
《数学的实践与认识》
CSCD
北大核心
2006年第10期267-271,共5页
Mathematics in Practice and Theory
关键词
实二次曲面
点的类型
分类
real conicoids
point of general
classification
