22 citations · 53 across the 5 of their papers we have counts for
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gr-qc2019★ 6 cited
Non-linear interactions in cosmologies with energy exchange
John D. Barrow, Georgia Kittou
We investigate the case of two interacting fluids in homogeneous and isotropic cosmologies with a non-linear interaction term. The interaction term avoids the unrealistic form gene…
gr-qc2019★ 3 cited
Interacting vacuum at infinity
Georgia Kittou
We apply the central extension technique of Poincare to dynamics involving an interacting mixture of pressureless matter and vacuum near a finite-time singularity. We show that the…