Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Blanco, O. F."'
Publikováno v:
J. Eur. Math. Soc. 15 (2013) 595-634
Second-order symmetric Lorentzian spaces, that is to say, Lorentzian manifolds with vanishing second derivative of the curvature tensor R, are characterized by several geometric properties, and explicitly presented. Locally, they are a product M=M_1
Externí odkaz:
http://arxiv.org/abs/1101.5503
Publikováno v:
J.Phys.Conf.Ser.314:012021,2011
We give a summary of recent results on the explicit local form of the second-order symmetric Lorentzian manifolds in arbitrary dimension, and its global version. These spacetimes turn out to be essentially a specific subclass of plane waves.
Com
Com
Externí odkaz:
http://arxiv.org/abs/1101.3438
Publikováno v:
J. Phys.: Conf. Ser. 229 (2010) 011001 (Ed. Ruth Lazkoz and Raul Vera), 012021 (4 p.)
As a difference with the positive-definite Riemannian case, in the Lorentzian case there exists proper second-order symmetric spacetimes, i.e., those with vanishing second covariant derivative of the Riemannian tensor ($R_{\lambda\mu\nu\rho;\alpha;\b
Externí odkaz:
http://arxiv.org/abs/1001.3629
Publikováno v:
Journal of Physics: Conference Series; 2011, Vol. 314 Issue 1, p1-1, 1p
