TY - JOUR AU - M. G. Gimadislamov TI - Discreteness of the Spectrum of a Polar Differential Operation in the Space of Vector Functions JO - Matematičeskie zametki PY - 2009 SP - 351 EP - 355 VL - 85 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2009_85_3_a3/ LA - ru ID - MZM_2009_85_3_a3 ER -