ar X iv : g r - qc / 0 60 71 29 v 1 2 8 Ju l 2 00 6 Universe With Time Dependent Deceleration Parameter and Λ Term in General Relativity
نویسنده
چکیده
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. PACS No. : 98.80.Es, 98.80.-k
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تاریخ انتشار 2006