Rotational perturbations of cosmological viscous-fluid Universe with zero-mass scalar field |
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| Authors: | Koijam Manihar Singh |
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| Institution: | (1) Department of Mathematics, Manipur University, Canchipur, Imphal, Manipur, India |
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| Abstract: | Certain new analytic solutions for the rotational perturbations of the Robertson-Walker universe are found out to substantiate the possibility of the existence of a rotating viscous universe with zero-mass scalar field. The values for  (r, t) which is related to the local dragging of inertial frames are investigated. In all the cases the rotational velocity is found to decay with time. Except for  perfect dragging the scalar field is found to have a damping effect on the rotation of matter. The damping effect is found to be roughly analogous to viscosity. In some solutions it is found that the scalar field may exist only during a time period in the course of evolution of the Universe. |
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