Implementação da manutenção autónoma numa empresa de mobiliário

Dissertação de mestrado integrado em Engenharia e Gestão Industrial

Homogenization of scalar field cosmologies

We summarise recent results about the evolution of linear density perturbations in scalar field cosmologies with an exponential potential. We use covariant and gauge invariant perturbation variables and a dynamical systems' approach. We establish under what conditions do the perturbations decay to the future in agreement with the cosmic no-hair conjecture.