We establish necessary and sufficient conditions for the existence of smooth admissible extremals in the problems of variational calculus with constraints in the form of a system of linear inhomogeneous differential equations of the first order with rectangular matrices and different types of boundary conditions.
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Translated from Neliniini Kolyvannya, Vol. 22, No. 4, pp. 458–473, October–December, 2019.
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Elishevich, M.A. Admissible Extremals in the Problems of Variational Calculus with Constraints in the Form of a System of Linear Inhomogeneous Differential Equations of the First Order with Rectangular Matrices. J Math Sci 254, 201–218 (2021). https://doi.org/10.1007/s10958-021-05298-2
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DOI: https://doi.org/10.1007/s10958-021-05298-2