Cosmological solution in Wesson's 5D theory of gravity

Details Cosmological solution in Wesson's 5D theory of gravity Cosmological solution in Wesson's 5D theory of gravity

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.207..105b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 207, no. 1, p. 105-108

Astronomy and Astrophysics

Astrophysics

7

Cosmology, Gravitation, Gravitation Theory, Relativistic Theory, Relativity, Dimensions, Einstein Equations, Homogeneity, Isotropy, Space-Time Functions

Scientific paper

Cosmological solutions that obey the perfect fluid equation of state in Wesson's gravitational theory are presented assuming that the fifth dimension subspace is also homogeneous and isotropic like the usual homogeneous isotropic cosmological model. It is shown that the scale factor scales as square root of t for the vanishing fifth component of the energy momentum tensor. The role of the fifth component as a cosmological constant is remarked, and an inflationary model is thus obtained.

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