Below is the ascii version of the abstract for 05-366. The html version should be ready soon.

The spectrum minimum for random Schr\"odinger operators with indefinite sign potentials
(747K, pdf, dvi, ps)

ABSTRACT.  This paper sets out to study the spectral minimum for operator 
belonging to the family of random Schr\"odinger operators of the 
form $H_{\lambda,\omega}=-\Delta+W_{\text{per}}+\lambda 
V_{\omega}$, where we suppose that $V_{\omega}$ is of Anderson type 
and the single site is assumed to be with an indefinite sign. 
Under some assumptions we prove that there exists $\lambda_0>0$ 
such that for any $\lambda \in [0,\lambda_0]$, the minimum of the 
spectrum of $H_{\lambda,\omega}$ is obtained by a given 
realization of the random variables.