A. Laptev, S. Naboko, O. Safronov 
A Szeg\"o condition for a multidimensional 
Schr\"odinger operator (a revised version of 
the preprint 02-501)
(170K, Postscript)

ABSTRACT.  We consider spectral properties of a 
Schr\"odinger 
operator 
perturbed by a potential vanishing at infinity and 
prove that the corresponding 
spectral measure satisfies a Szeg\"o 
type condition.