Generalization of orthogonal group to preserve different bilinear forms. Important because the Lorentz group is .
- Lorentz group | 189, 794, 9
- Poincaré group | 192, 2k, 16
- Important Lie group | 0, 5k, 65
- Lie group | 278, 7k, 97
- Differential geometry | 12, 7k, 98
- Geometry | 0, 9k, 154
- Mathematics | 17, 34k, 763
- Ciro Santilli's Homepage | 262, 237k, 4k
- Definition of the indefinite orthogonal group | 204, 383, 1
- Sylvester's law of inertia | 527, 626, 5
- Symplectic group | 222, 222, 2