类空 meaning in English

minkowski space
spacelike

Semi - symmetric spacelike hypersurfaces in de sitter space
空间中半对称的类空超曲面
Asymptotic direction and asymptotic curve of spacelike surface in r
1中类空曲面的渐近方向与渐近曲线
Complete space - like hypersurfaces with constant scalar curvature in lorentz spaces
空间中的具有常数量曲率的完备类空超曲面
Chapter 7 introduces the other two space - time codes besides space - time block codes - space - time trellis codes and space - time layered codes
第七章简单介绍了除空时分组码之外的两大类空时码，空时格状码和分层空时码。
In chapter one , we investigate the influence of the boundary on the shape of the space - like hypersurface with constant mean curvature or constant scalar curvature in the lorentz - minkowski space ln + 1
第一章对于lorentz - minkowski空间中的常平均曲率或常纯量曲率的类空超曲面，探讨了边界对超曲面形状的影响。