LIGHTLIKE RULED AND REVOLUTION SURFACES IN R13

被引：0

作者：

Altin, A. ^{[2
]}

Kabadayi, H. ^{[1
]}

Sabuncuoglu, A. ^{[1
]}

机构：

[1] Ankara Univ, Fac Sci, Dept Math, TR-06100 Ankara, Turkey

[2] Hacettepe Univ, Fac Sci, Dept Math, TR-06550 Ankara, Turkey

来源：

IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE | 2010年 / 34卷 / A2期

关键词：

Lightlike surface; lightlike ruled surface; lightlike revolution surface;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this paper lightlike ruled surfaces in R-1(3) = (R-3,-dx(2)+dy(2)+dz(2)) are studied with respect to whether ruling curves are spacelike or null. It is seen that, in the first case the Gaussian curvature of the ruled surfaces vanishes. In the second case the Gaussian curvature of the ruled surfaces are negative. In the second case lightlike ruled surfaces are totally umbilical. Furthermore, lightlike surfaces of revolution are shown to be only cones, and the second type lightlike ruled surface.

引用

页码：95 / 101

页数：7

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