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Second Order Perturbations of Flat Dust FLRW Universes with a Cosmological Constant

Felipe C. Mena·Reza Tavakol·Marco Bruni
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Abstract

We summarize recent results concerning the evolution of second order perturbations in flat dust irrotational FLRW models with $Λ\ne 0$. We show that asymptotically these perturbations tend to constants in time, in agreement with the cosmic no-hair conjecture. We solve numerically the second order scalar perturbation equation, and very briefly discuss its all time behaviour and some possible implications for the structure formation.

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Felipe C. Mena, Reza Tavakol, Marco Bruni. 2002-07-11. Second Order Perturbations of Flat Dust FLRW Universes with a Cosmological Constant. https://doi.org/10.1142/s0217751x02013277

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