NULL AND INFINITESIMAL ISOTROPY IN SEMI-RIEMANNIAN GEOMETRY


GARCIARIO E., KUPELI D.

JOURNAL OF GEOMETRY AND PHYSICS, cilt.13, ss.207-222, 1994 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 13 Konu: 3
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1016/0393-0440(94)90031-0
  • Dergi Adı: JOURNAL OF GEOMETRY AND PHYSICS
  • Sayfa Sayıları: ss.207-222

Özet

Null and infinitesimal isotropy are defined for semi-Riemannian manifolds in a more general context. A theorem of Karcher is extended to semi-Riemannian manifolds in a more general setting. Also, by using this theorem, a characterization of static blackhole metrics can be made as well as a characterization of Robertson-Walker metrics as Karcher made.