Original scientific paper
Bianchi type-III anisotropic universes with a cloud of strings in Lyra's geometry
Vineet Kumar Yadav
; Department of Physics, D. D. U. Gorakhpur University, Gorakhpur-273 009, India
Lallan Yadav
; Department of Physics, D. D. U. Gorakhpur University, Gorakhpur-273 009, India
Anil Kumar Yadav
; Department of Physics, Anand Engineering college, Keetham, Agra-282 007, India
Abstract
Bianchi type-III string cosmological models are investigated in the presence of string fluid as a source of matter in the framework of Lyra’s geometry. It is observed that the models start with singular state and evolve continuously as t → ∞. It is found that, in all cases, the displacement vector β(t) is a decreasing function of time analogous to the behaviour of the cosmological constant Λ. The physical and geometrical aspects of the models are also discussed.
Keywords
cosmology; string theory; Bianchi type-III; Lyra’s geometry
Hrčak ID:
304592
URI
Publication date:
1.3.2010.
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