00-228 Wei-Min Wang
Mean field bounds on Lyapunov exponents in $Z^d$ at the critical energy (124K, dvi file) May 17, 00
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Abstract. We further develop the supersymmetric formalism initiated in [W1] (see also [SjW]). We obtain the optimal mean field bounds at the critical energy for Lyapunov exponents of random walks in random potentials in $Z^d$ at weak disorder. This extends some of the results in [W1].

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