二次直纹曲面的新判别法  

The New Criterion of Quadric Ruled Surfaces

作　　者：熊宗洪[1] 姚娟[1] 

机构地区：[1]贵州民族大学理学院,贵州贵阳550025

出　　处：《铜仁学院学报》2015年第4期161-164,共4页Journal of Tongren University

基　　金：贵州省科技厅联合基金(黔科合LH字[2014]7378);贵州省数学建模及应用创新人才团队项目(黔教科研发[2013]405号)研究成果

摘　　要：本文先给出二次直纹曲面的判别法则,并利用四类经典二次直纹曲面的某些性质,建立了它们相应的新判别法则。最后,举出若干实例加以应用。Firstly, the paper provided judging rule for quadric ruled surfaces. By using some properties of four kinds of classic quadric ruled surfaces, a new criterion was set up. Finally, the paper gave some examples for applying the rules.

关 键 词：直纹曲面 二次锥面 二次柱面 单叶双曲面 双曲抛物面 直母线 新判别法 

分 类 号：O182.2[理学—数学]