Construction of an approximate solution to an optimal control problem for a singularly perturbed differential-algebraic system by O. V. Tarasenko

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A nonlinear Noether boundary-value problem for a parametric excitation system by S. M. Chujko

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Optimization problems with a periodic boundary-value condition and boundary control for gas-lifting wells by F. A. Aliev, N. A. Ismailov

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Global existence results for functional differential inclusions with delay by M. Benchohra, I. Medjadj

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Linear Noether boundary-value problems for dynamical systems on a time scale by O. A. Boichuk, O. P. Strakh

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Untitled by Z. Wang, J. Cao, S. Lu

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Untitled by W. Wang, J. Shen

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Asymptotic behavior of solutions to nonlinear systems of ordinary differential equations by V. M. Evtukhov, M. A. Talimonchak

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The whole is more than the sum of the parts (Nobel Prize in Physics 2021) by Yu. V. Holovach

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Dynamical system model "fire – water" type conflict by T. V. Karataieva, V. D. Koshmanenko

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Oscillation criteria for first-order linear difference equations with several delay arguments by R. Koplatadze, S. Pinelas

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On periodic motion and bifurcations of three-dimensional nonlinear systems by A. A. Martynjuk, N. V. Nikitina

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Nonlinear second order Noether boundary-value problems in the critical case by S. M. Chujko, E. V. Chujko, I. A. Bojchuk

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On multipoint problem for system of hyperbolic equations with mixed derivative by A. T. Asanova

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A Cauchy problem for evolution pseudodifferential equations with variable symbols by V. V. Horodetskyi, O. V. Martyniuk, R. I. Petryshyn

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On properties of continuous periodic solutions of differential-functional systems with a small parameter by N. L. Denysenko

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On the structure of the set of continuous solutions of linear systems of difference-functional equations by T. O. Yeromina

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Generalized invesion of Fredholm integral operators with degenerate kernel in a Banach spaces by V. P. Zhuravlov

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Averaging of an optimal control problem on time scales by A. P. Ogulenko, O. D. Kichmarenko

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Asymmetric organocatalysis — a new strategy for the construction of chiral molecules for modern engineering, technology, and medicine (Nobel Prize in Chemistry 2021) by M. V. Vovk

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