TY - JOUR AU - N. T. Tynyanskii TI - Conjugate concave-convex functions in linear topological spaces and their saddle points JO - Sbornik. Mathematics PY - 1969 SP - 503 EP - 531 VL - 7 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1969_7_4_a3/ LA - en ID - SM_1969_7_4_a3 ER -