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The Onset of Nonlinearity in Cosmology

Edited by Edited by James N. Fry, Robert Buchler, and Henry Kandrup (University of Florida, Gainsville)
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The Onset of Nonlinearity in Cosmology

Published: June 2001

Volume 927

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On the largest observable scales, the universe appears to be nearly homogeneous and isotropic, with small fluctuations that are easily and accurately treated in linear perturbation theory. On small scales, local variations are large, and the behavior of the distribution of matter is studied by numerical simulation. In the intermediate region, neither suffices completely: nonlinearity in the evolution can no longer be ignored, but finite volume and resolution effects make simulation difficult as well. This meeting focused on the intermediate scales, the onset of nonlinearity, statistical techniques for identifying its effects (anomalous non-Gaussian distributions, higher order correlations), and analytic methods (mode coupling, phenomenological approximations) for studying. Such considerations may be of interest in other similar settings, such as the onset of turbulence.

This volume is out of print.