TY - JOUR AU - A. L. Belopol'skii TI - Some applications of the scattering problem for a~pair of spaces with an unbounded identification operator JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1983 SP - 52 EP - 53 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1983_6_a7/ LA - ru ID - IVM_1983_6_a7 ER -