TY - JOUR AU - V. V. Pod'yapol'skii AU - A. L. Skubachevskii TI - On the completeness and basis property for a~system of root functions of strongly elliptic functional-differential operators JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1996 SP - 1220 EP - 1222 VL - 51 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1996_51_6_a18/ LA - en ID - RM_1996_51_6_a18 ER -