- 01-385 Ari Laptev, Sergej Naboko, Oleg Safronov
- Absolutely continuous spectrum of Jacobi matrices
Oct 18, 01
(auto. generated ps),
of related papers
Abstract. We study the discrete Schr\"odinger operator
perturbed by a three diagonal matrix of a certain class.
We follow the approach of Deift and Killip and prove
that the absolutely continuous
part of the spectrum is essentially supported by [-2,2].