Physics
Scientific paper
Apr 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997phrvd..55.5205f&link_type=abstract
Physical Review D, Volume 55, Issue 8, April 15, 1997, pp. 5205-5207
Physics
33
Particle-Theory And Field-Theory Models Of The Early Universe, Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity
Scientific paper
Scalar perturbations in a perfect fluid with negative pressure are
studied. The expression of the density contrast δ is established
when the equation of state has a barotropic form: i.e.,
p0=qɛ0. The behavior of δ is
examined for different form of the background scale factor.
Fabris Julio Cesar
Martin Jerome
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