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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/054/05/0729-0736

    • Keywords

       

      Cosmological models; particle production; higher derivative theory of gravitation

    • Abstract

       

      The effect of particle production on the evolution of the spatially flat Friedmann-Lemaitre-Robertson-Walker cosmological model during the early stages of the universe is analysed in the framework of higher derivative theory. The universe has been considered as an open thermodynamic system where particle production gives rise to a supplementary negative creation pressure in addition to the thermodynamic pressure. The dynamical behaviour of both exponential as well as power law solutions have been discussed.

    • Author Affiliations

       

      G P Singh1 2 A Beesham1 2 R V Deshpande1 3

      1. Department of Mathematics, Visvesvaraya Regional College of Engineering, Nagpur - 440 011, India
      2. Department of Applied Mathematics, University of Zululand, Private Bag X1001, Kwa-Dlangezwa - 3886, South Africa
      3. Department of Mathematics, Priyadarshini College of Engineering and Architecture, Nagpur

    • Dates

       
      Published
      May 2000
      Manuscript received
      27 May 1999
      Manuscript revised
      3 February 2000

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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