Abstract
We consider inhomogeneous viscous fluids in flat Friedmann-Robertson-Walker universe. We analyze different kinds of such fluids and investigate the possibility to reproduce the current cosmic acceleration providing a different future evolution with respect to the Cosmological Constant case. In particular, we study the presence of finite-future time singularities. We also discuss a general class of “integrable” viscous fluid models whose bulk viscosities obey to a common differential equation.
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Myrzakul, S., Myrzakulov, R. & Sebastiani, L. Inhomogeneous viscous fluids in FRW universe and finite-future time singularities. Astrophys Space Sci 350, 845–853 (2014). https://doi.org/10.1007/s10509-014-1799-9
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DOI: https://doi.org/10.1007/s10509-014-1799-9