Mathematical Notes.
Vol. 102.
2017.
P. 623-631
We prove a theorem on the coincidence points of two mappings acting on spaces equipped with a vector metric. By way of application, we obtain sufficient conditions for the existence of a solution of an ordinary differential equation unsolved for the derivative of the unknown function and local solvability conditions for a control system with mixed constraints. © 2017, Pleiades Publishing, Ltd.