TY - JOUR AU - V. R. Barseghyan AU - S. V. Solodusha AU - E. V. Markova TI - Optimal boundary control of oscillations of a string with given intermediate values of the speed for minimizing boundary energy JO - Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory PY - 2025 SP - 3 EP - 18 VL - 240 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTO_2025_240_a0/ LA - ru ID - INTO_2025_240_a0 ER -