참고문헌
- Geom.Dedicata v.21 Isometry groups of orthonormal frame bundles R.Fisher;K.B.Lee
- Differential geometry and symmetric spaces S.Helgason
- Foundations of differential gometry Kobayashi;K.Nomizu
- J.Differential Geom. v.21 3-dimensional Lorentz space-forms and Seifert fiber spaces R.Kulkarni;F.Raymond
- Quart.J.Math. v.46 Infra-solvmanifolds of type(R) K.B.Lee
- book Sifert Manifolds K.B.Lee;F.Raymond
- Die Grundlehren der Math. v.114 Homology Mac Lane;Saunders
- Math.Ann. v.233 The group of isometries of a left invariant Riemannian metric on a Lie group T.Ochiai;T.Takahashi
- Spaces of constant curvature J.A.Wolf