Cosmology and Time [PDF]
A. BalbiTime has always played a crucial role in cosmology. I review some of the aspects of the present cosmological model which are more directly related to time, such as: the definition of a cosmic time; the existence of typical timescales and epochs in an expanding universe; the problem of the initial singularity and the origin of time; the cosmological arrow of time.View original: http://arxiv.org/abs/1304.3823
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