• Cosmological models with constant deceleration parameter in Nordtvedt’s theory

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      https://www.ias.ac.in/article/fulltext/pram/042/06/0473-0481

    • Keywords

       

      Cosmology; power-law and exponential expansion; general scalar-tensor theory

    • Abstract

       

      Exact solutions of the field equations of Nordtvedt’s theory for spatially flat FRW models with constant deceleration parameter have been obtained. Singular solutions with (i) power-law (ii) exponential expansion have been studied in Nordtvedt’s theory where the coupling parameterω is a function of the scalar fieldφ.

    • Author Affiliations

       

      V B Johri1 Kalyani Desikan1

      1. Cosmology Group, Department of Mathematics, Indian Institute of Technology, Madras - 600 036, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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