IUCAA Preprints

Permanent URI for this communityhttp://localhost:4000/handle/11007/149

Browse

Filters

2000 - 20062

Settings

Subject: search.filters.subject.Cosmological term

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    LRS Bianchi I cosmological universe models with varying cosmological term
    (2000-02-25) Pradhan, Anirudh; Kumar, Ambarish
    Einstein's eld equations with cosmological term varying with time are considered in the context of general homogeneous, anisotropic universes in a way which conserves the energy{momentum tensor of matter content. It is shown that the eld equations are solvable for any arbitrary cosmic scale functions. Some physical and geometrical features of the models are discussed.
  • No Thumbnail Available
    Item
    Universe with time dependent deceleration parameter and /\ term in general relativity
    (2006-07-28) Pradhan, Anirudh; Otarod, Saeed
    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.