flatness problem


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flatness problem

[′flat·nəs ‚präb·ləm]
(astronomy)
The problem of explaining why, after 1010 years of expansion, the density parameter is of the order of 1, whereas the standard big-bang theory suggests that once this parameter deviates even slightly from 1 it very quickly approaches an asymptotic value far away from 1 for open or closed universes.
References in periodicals archive ?
An adaptation of the dual-affine interior point method for the surface flatness problem, European Journal of Operational Research, Volume 181, Issue 3, September 2007, pp.
Changing only one jackscrew raises or lowers one end of the work roll, correcting the simplest kind of flatness problem in the strip-stock: elongation that varies linearly from one edge of the strip to the other.
Introducing helium, which has six times the conductivity of air, will help overcome flatness problems.