00683naa#a2200181#i#450# EN\\bibl\122831 20260608162256.1 2686-9896 20260515b2026####ek#y0engy0150####ca RU OPTIMAL CONTROL OF A LINEAR OBJECT WITH TWO COORDINATES AND ONE CONTROL IN A PROBLEM WITH FIXED ENDS Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2026 1 с. Journal article local Математика. 51 Kivatitskaya Alexandra Vasilievna Istomin Andrey Leonidovich angtu.editorum.ru