Marco Bruni                                  GGI Florence, October 2006
Outline
§Standard cosmology
§Motivations
§Non-linear EoS and energy conservation
§RW dynamics with a quadratic EoS
§Bianchi I and V dynamics with a quadratic EoS
§Large scale perturbations of the past attractor
§Work in progress: affine EoS as unified DM and cosmological tests
§Summary
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