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Various Approaches to an Averaging Process in General Relativity

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If you have a question about this talk, please contact Dr H K Kunduri .

The suggestion that the formation of structure on cosmologically small scales can backreact on the evolution of the Universe as a whole has gained considerable attention recently. We argue that, to settle this issue, an averaging procedure is required which is capable of averaging tensor quantities in a generally covariant way. We discuss in depth various approaches to such a procedure, and remaining problems which need to be addressed.

This talk is part of the DAMTP Friday GR Seminar series.

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Hardy Building 101, Downing Site (please note change of venue) Average on weekdays: 9030.12280702 kWh SS03, Computer Lab, William Gates Building

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