TY - JOUR AU - I. Kachkovskii AU - N. Filonov TI - Absolute continuity of the spectrum of the periodic Scr\"odinger operator in a~layer and in a~smooth cylinder JO - Zapiski Nauchnykh Seminarov POMI PY - 2010 SP - 69 EP - 82 VL - 385 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2010_385_a3/ LA - ru ID - ZNSL_2010_385_a3 ER -