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We study the final/initial behavior of a dust Universe with spatial spherical symmetry. This study is done in proximity of the collapse/generation times by an expansion in fractional Puiseux series. Even if the evolution of the universe has different behaviours depending on the initial data (in particular on the initial spatial curvature), we show that, in proximity of generation or collapse time, the Universe expands or collapses with the same behavior.

Evolution of a Spherical Universe in a Short Range Collapse/Generation Interval