调和线束的应用  

An application of harmonic pencil of lines

作　　者：李长明[1] 

机构地区：[1]贵州教育学院数学系,贵州贵阳550003

出　　处：《贵州教育学院学报》2001年第4期8-13,共6页Journal of Guizhou Educational College(Social Science Edition)

摘　　要：先用调和线束对一道竞赛题给出简捷的新证法 ,接着用射影几何的知识进行了深入的探讨 ,并发现两道新题。A mathematical competition problem is discussed in this paper by means of properties of harmonic pencil of lines and other knowledge of projective geometry. A short solution to this problem is given and two equivalence relations are obtained.

关 键 词：影射几何 调和线束 交比 射影性质 证明方法 应用 调和共轭 射影证法 面积证法 

分 类 号：O123.2[理学—数学]