An exact solution of the Einstein equations for a Bianchi-I universe in the presence of dust, stiff matter and a negative cosmological constant, generalising the well-known Heckmann-Schucking solution is presented. This solution describes a universe existing during a finite period of cosmic time, where the beginning and the end of its evolution are characterized by the presence of Kasner type cosmological singularities.
A.Y. Kamenshchik, C.M.F. Mingarelli (2010). A Generalized Heckmann-Schucking cosmological solution in the presence of a negative cosmological constant. PHYSICS LETTERS. SECTION B, 693, 213-217 [10.1016/j.physletb.2010.08.065].
A Generalized Heckmann-Schucking cosmological solution in the presence of a negative cosmological constant
KAMENCHTCHIK, ALEXANDR;
2010
Abstract
An exact solution of the Einstein equations for a Bianchi-I universe in the presence of dust, stiff matter and a negative cosmological constant, generalising the well-known Heckmann-Schucking solution is presented. This solution describes a universe existing during a finite period of cosmic time, where the beginning and the end of its evolution are characterized by the presence of Kasner type cosmological singularities.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
