Physics – Physics Education
Scientific paper
2006-09-21
Physics
Physics Education
10 RevTex pages, 5 figures. Simple study of cosmological models intended for an undergraduate course on Cosmology
Scientific paper
We present two methods for describing, from a pedagogical point of view, the solutions of Einstein's equations applied to a homogeneous and isotropic universe. In the first method, we define an effective gravitational potential of the universe, and the second method makes use of the fact that we can define a dynamical system of equations. The methods are applied to different cosmological models whose properties are discussed in turn. The ultimate intention is to provide simple examples to be revised in a first Cosmology course for undergraduates.
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