K B Sinha
Articles written in Proceedings – Mathematical Sciences
Volume 111 Issue 2 May 2001 pp 179-201
In this paper we consider some Anderson type models, with free parts having long range tails and with the random perturbations decaying at different rates in different directions and prove that there is a.c. spectrum in the model which is pure. In addition, we show that there is pure point spectrum outside some interval. Our models include potentials decaying in all directions in which case absence of singular continuous spectrum is also shown.
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