Original scientific paper
Plane symmetric inhomogeneous bulk viscous domain wall in Lyra geometry
Anirudh Pradhan
; Dept. of Mathematics, Hindu Post-graduate College, Zamania-232 331, Ghazipur, India
Vandana Rai
; Department of Mathematics, Post-graduate College,Ghazipur-233 001, India
Saeed Otarod
; Department of Physics, Yasouj University,Yasouj, Iran
Abstract
Some bulk viscous general solutions are found for domain walls in Lyra geometry in the plane symmetric inhomogeneous spacetime. Expressions for the energy density and pressure of domain walls are derived in both cases of uniform and time varying displacement field β. The viscosity coefficient of bulk viscous fluid is assumed to be a power function of mass density. Some physical consequences of the models are also given. Finally, the geodesic equations and acceleration of the test particle are discussed.
Keywords
cosmology; plane symmetric domain walls; bulk viscous model; Lyra geometry
Hrčak ID:
304362
URI
Publication date:
2.5.2006.
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