摘要
罗氏空间中每一四面体有唯一的外接球曲面及旁切球曲面．
Every tetrahedron in Lobachevsky's space has a unique circumscribed hypersphereand escribed hypersphere. The paper also discusses the relation between the circumscribed hypersphere and circumscribed hypercircles of the triangles on the faces of the tetrahedron.
出处
《首都师范大学学报（自然科学版）》
1997年第3期15-19,共5页
Journal of Capital Normal University：Natural Science Edition
关键词
接球
外接圆
四面体
三角形
唯一
空间
曲面
圆曲线
Lobachevsky's space, tetrahedron, circumscribed hypersphere, escribed hypersphere, circumscribed hypercircle.
