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Viscous varying generalized Chaplygin gas with cosmological constant and space curvature. (English) Zbl 1274.83174

Summary: In this paper we study varying generalized Chaplygin gas which has viscosity in presence of cosmological constant and space curvature. By using well-known forms of scale factor in non-linear differential equation we obtain behavior of dark energy density numerically. We use observational data to fix solution and discuss about stability of our system.

MSC:

83F05 Relativistic cosmology
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