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Seminar

MSRI/Evans Lecture: On the topology and future stability of the universe September 23, 2013 (04:10PM PDT - 05:00PM PDT)
Location: UC Berkeley, 60 Evans Hall
Speaker(s) Hans Ringström (Royal Institute of Technology (KTH))
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The current standard model of the universe is spatially homogeneous, isotropic and spatially flat. Furthermore, the matter content is described by two perfect fluids (dust and radiation) and there is a positive cosmological constant. Such a model can be well approximated by a solution to the Einstein-Vlasov equations with a positive cosmological constant. As a consequence, it is of interest to study stability properties of solutions in the Vlasov setting. The talk will contain a description of recent results on this topic. Moreover, the restriction on the global topology of the universe imposed by the data collected by observers will be discussed.

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