%0 Journal Article %A Dmitri A. Ovsyannikov %A Elena D. Kotina %T On some problems of trajectory beam program control. Part~I %J The Bulletin of Irkutsk State University. Series Mathematics %D 2023 %P 51-65 %V 46 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2023_46_a3/ %G ru %F IIGUM_2023_46_a3