P. Briet et E. Mourre, SOME RESOLVENT ESTIMATES FOR STURM-LIOUVILLE OPERATORS, Journal of mathematical analysis and applications, 201(3), 1996, pp. 867-879
In this paper we derive some a priori estimates on the resolvent of on
e dimensional Schrodinger operators from the solutions of the associat
ed differential equation with real energy. In particular this implies
the existence of an absolutely continuous spectrum in some situations.
(C) 1996 Academic Press, Inc.