@inproceedings{david2003half-line,
title={Half-line Schrödinger operators with no bound states},
author={David Damanik, and Rowan Killip},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203345013936653},
booktitle={Acta Mathematica},
volume={193},
number={1},
pages={31-72},
year={2003},
}
David Damanik, and Rowan Killip. Half-line Schrödinger operators with no bound states. 2003. Vol. 193. In Acta Mathematica. pp.31-72. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203345013936653.