摘要
根据射影几何中的对偶原则,将P2中的Pappus定理及其对偶定理推广至P3.
In this paper,Pappus theorem has been generalized in P^3 based on the duality principle of projective space.
出处
《兰州交通大学学报》
CAS
2006年第4期134-135,共2页
Journal of Lanzhou Jiaotong University
关键词
点列
线束
面束
射影对应
透视对应
point range
line pencil
pencil of planes
projective correspondence
perspective correspondence