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gr-qc2013★ 22 cited
Flat limits of curved interacting cosmic fluids
Spiros Cotsakis, Georgia Kittou
We study curved isotropic cosmologies filled with two interacting fluids near their time singularities. We find that a number of these universes asymptote to flat limits in the sen…
gr-qc2013
Limits of isotropic universes with interacting fluids
Spiros Cotsakis, Georgia Kittou
We find various asymptotic limits of universes containing two interacting fluids which interact and exchange energy. We study the finite-time singularities that may develop in thes…