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机译:ASYMPTOTIC APPROXIMATION TO A SOLUTION OF A SINGULARLY PERTURBED LINEAR-QUADRATIC OPTIMAL CONTROL PROBLEM WITH SECOND-ORDER LINEAR ORDINARY DIFFERENTIAL EQUATION OF STATE VARIABLE
Department of Mathematics, Mechanics and Informatics, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Ha Noi, Vietnam;
Singular perturbation; asymptotic expansion; optimal problem; second-order ODE;