 9179 Bathas G., Neuberger H.
 A possible barrier at $z\approx 1$ for local algorithms.
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Dec 16, 91

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Abstract. It is shown that a certain class of generalizations of overrelaxation
algorithms is incapable to further reduce the dynamical exponent z
below its standard overrelaxed value of z=1 approximately. Approximately means
that the mean field value is one, while the true value can be somewhat
different in certain dimensions. The generalizations are obtained by viewing
overrelaxation as a slightly deformed deterministic algorithm and should,
therefore, hold for Hybrid Monte Carlo algorithms as well.
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