Abstract
A new class of exact solutions of Einstein's field equations with perfect fluid for an LRS Bianchi type-I spacetime is obtained by using a time dependent deceleration parameter. We have obtained a general solution of the field equations from which three models of the universe are derived: exponential, polynomial and sinusoidal form respectively. The behaviour of these models of the universe are also discussed in the frame of reference of recent supernovae Ia observations.
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Pradhan, A., Otarod, S. Universe with Time Dependent Deceleration Parameter and Λ Term in General Relativity. Astrophys Space Sci 306, 11–16 (2006). https://doi.org/10.1007/s10509-006-9178-9
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DOI: https://doi.org/10.1007/s10509-006-9178-9