TY - JOUR AU - E. V. Orlovskaya TI - A minimum for the theta function in three variables and the solution of the Rankin--Sobolev problem in a~three-dimensional space JO - Zapiski Nauchnykh Seminarov POMI PY - 1994 SP - 150 EP - 157 VL - 211 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1994_211_a12/ LA - ru ID - ZNSL_1994_211_a12 ER -