Results 71 to 80 of about 82 (82)

The identity component of the isometry group of a compact Lorentz manifold

Duke Mathematical Journal, 1998
Abdelghani Zeghib
exaly  

Decomposition theorems for Lorentzian manifolds with nonpositive curvature

Journal of Differential Geometry, 1985
John K Beem, Paul E Ehrlich, Steen Markvorsen   +2 more
exaly  

A Morse index theorem for null geodesics

Duke Mathematical Journal, 1979
John K Beem, Paul E Ehrlich
exaly  

Flat spacetimes

Journal of Differential Geometry, 1987
exaly  

The splitting theorem for space-times with strong energy condition

Journal of Differential Geometry, 1988
exaly  

Models of the Riemannian manifolds $O^2_n$ in the Lorentzian 4-space

Journal of Differential Geometry, 1974
Tominosuke Otsuki
exaly  

Geodesic symmetries in spaces with special curvature tensors

Journal of Differential Geometry, 1974
exaly  

Harmonic endomorphism fields

Illinois Journal of Mathematics, 1997
Eduardo Garcia-Rio, Lieven Vanhecke, M E Vazquez-Abal   +2 more
exaly  

The Gauss-Bonnet theorem for $2$-dimensional spacetimes.

Michigan Mathematical Journal, 1984
exaly  

Maximal spacelike submanifolds of a pseudo-Riemannian space of constant curvature.

Michigan Mathematical Journal, 1988
exaly