Liouville equation(redirected from Liouville's theorem (Hamiltonian))
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Liouville equation[′lyü‚vēl i‚kwā·zhən]
An equation which states that the density of points representing an ensemble of systems in phase space which are in the neighborhood of some given system does not change with time.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.