TY - JOUR AU - L. E. Faibusovich TI - Existence and uniqueness of extremal solutions of the Riccati equation, and symplectic geometry JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1985 SP - 85 EP - 86 VL - 19 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1985_19_1_a19/ LA - ru ID - FAA_1985_19_1_a19 ER -