Astrophysics and Space Science

, Volume 20, Issue 1, pp 205–212 | Cite as

Imperfect fluid Friedmannian cosmology

  • M. Heller
  • Z. Klimek
  • L. Suszycki


The bulk viscosity is introduced into the frame of ordinary Friedmannian cosmology (under highly idealized assumption of the constant coefficient of bulk viscosity). Explicit solutions are given for the viscous flat universe filled with the dust-substratum and for the viscous radiative universe. The problem, how does the introduction of viscosity affect the appearance of singularity, is briefly discussed.


Viscosity Explicit Solution Constant Coefficient Bulk Viscosity Flat Universe 
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Copyright information

© D. Reidel Publishing Company 1973

Authors and Affiliations

  • M. Heller
    • 1
  • Z. Klimek
    • 1
  • L. Suszycki
    • 2
  1. 1.Astronomical Observatory of Jagellonian UniversityCracowPoland
  2. 2.Academy of Mining and MetallurgyCracowPoland

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