Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ap%26ss.283...97b&link_type=abstract
Astrophysics and Space Science, v. 283, Issue 1, p. 97-108 (2003).
Astronomy and Astrophysics
Astrophysics
32
Scientific paper
L.R.S. Bianchi Type I string dust cosmological models with and without magnetic field following the techniques used by Letelier and Stachel, is investigated. To get a determinate solution, we assume a conditionσ is proportional to scalar of expansion θ where σ is shear and θ is scalar of expansion and which leads to A=ℓ B nwhere n is a constant and ℓ is proportionality constant. Some special models are also investigated by introducing the transformation,tfrac{{A_4 }}{A} = w, which leads to Riccati type differential equation. The physical and geometrical aspects of the models are also discussed.
Bali Raj
Upadhaya R. D.
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