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    Paper   IPM / P / 6935
       School of Physics
      Title: Some Exact Geometries for Asymptotically de Sitter Spacetime
      Author(s): N. Riazi
      Status: Published
      Journal: Astrophysics and Space Science
      No.: 2
      Vol.: 283
      Year: 2003
      Pages: 235-244
      Supported by: IPM
      Abstract:
    Spherical, time-dependent geometrical structures in an inflationary RW background are derived from the Einstein equations, using a constraint on the energy-momentum tensor which is an extension of the one expected for inflation. The possibility of dynamical wormholes and other spherical structures are explored in the framework of the solutions.

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