A Dynamical Study of the Friedmann Equations

Details A Dynamical Study of the Friedmann Equations A Dynamical Study of the Friedmann Equations

2001-08-30

arxiv.org/abs/physics/0108066v1

Eur. J. Phys. 22 (2001) 371-384

Physics

Physics Education

Needs IOP LaTeX class; 17 pages, 9 figures

Scientific paper

10.1088/0143-0807/22/4/312

Cosmology is an attracting subject for students but usually difficult to deal with if general relativity is not known. In this article, we first recall the Newtonian derivation of the Friedmann equations which govern the dynamics of our universe and discuss the validity of such a derivation. We then study the equations of evolution of the universe in terms of a dynamical system. This sums up the different behaviors of our universe and enables to address some cosmological problems.

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