Conformal Factors of Generalized Cosmologies

Bibcode
2002nmgm.meet.1971H
DOI
10.1142/9789812777386_0446
Herrero, A.; Morales, J. A.
Bibliographical reference

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories. Proceedings of the MGIX MM Meeting. Held 2-8 July 2000 in The University of Rome "La Sapienza", Italy. Edited by Vahe G Gurzadyan (Yerevan Physics Institute, Armenia), Robert T Jantzen (Villanova University, USA), & Remo Ruffini (University of Rome ``La Sapienza'', Italy) . Published by World Scientific Publishing Co. Pte. Ltd., 2002. ISBN #9789812777386, pp. 1971-1972"

Advertised on:
12
2002
Number of authors
2
IAC number of authors
1
Citations
0
Refereed citations
0
Description
We present a study of the properties of radial conformal Killing fields (RCKF) in conformally flat space-times, pointing out its interest in kinematical cosmology. i) Robertson-Walker space-times are characterized as those conformally flat metrics admitting a geodesic RCKF. ii) The conformal factor of space-times that admit a RCKF with homogeneous expansion is obtained. iii) The existence of a radial conformal motion with orthogonal 3-spaces of constant sectional curvature is analyzed as a cosmological hypothesis.
Type
Non-refereed

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