Exact solutions, finite time singularities and non-singular universe models from a variety of Λ(t) cosmologies

  title={Exact solutions, finite time singularities and non-singular universe models from a variety of $\Lambda$(t) cosmologies},
  author={Supriya Pan},
  journal={Modern Physics Letters A},
  • S. Pan
  • Published 4 December 2017
  • Physics
  • Modern Physics Letters A
Cosmological models with time-dependent Λ (read as Λ(t)) have been investigated widely in the literature. Models that solve background dynamics analytically are of special interest. Additionally, the allowance of past or future singularities at finite cosmic time in a specific model signals for a generic test on its viabilities with the current observations. Following these, in this work we consider a variety of Λ(t) models focusing on their evolutions and singular behavior. We found that a… 

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