TY - JOUR AU - F. A. Gadzhiev TI - Functions of four variables on the three-dimensional sphere, which are not representable as a superposition of functions of a smaller number of variables JO - Doklady Akademii Nauk PY - 1986 SP - 785 EP - 788 VL - 289 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1986_289_4_a2/ LA - ru ID - DAN_1986_289_4_a2 ER -