LRS Bianchi Type II Massive String Cosmological Models with Magnetic Field in Lyra's Geometry. (30th October 2013)

• Record Type: Journal Article
• Authors: Bali, Raj; Yadav, Mahesh Kumar; Gupta, Lokesh Kumar
• Other Names: Ram Shri Academic Editor.
• Is Part Of: Advances in mathematical physics. Volume 2013(2013)
• Publication Date: 2013-10-30
• Subjects: Mathematical physics -- Periodicals; Mathematical physics; Periodicals; 530.15
• DOI: 10.1155/2013/892361
• Languages: English
• ISSNs: 1687-9120

Abstract

Abstract : Bianchi type II massive string cosmological models with magnetic field and time dependent gauge function (ϕ i ) in the frame work of Lyra's geometry are investigated. The magnetic field is inYZ -plane. To get the deterministic solution, we have assumed that the shear (σ ) is proportional to the expansion (θ ). This leads toR = S n, whereR andS are metric potentials andn is a constant. We find that the models start with a big bang at initial singularity and expansion decreases due to lapse of time. The anisotropy is maintained throughout but the model isotropizes whenn = 1 . The physical and geometrical aspects of the model in the presence and absence of magnetic field are also discussed.