Singular nonlinear eigenvalue problem for second order differential equation with energy dissipation by Parasyuk, I.O., Pozur, S.V.

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Quasiperiodic Extremals of Nonautonomous Lagrangian Systems on Riemannian Manifolds by Parasyuk, I. O., Парасюк, І. О.

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Perturbations of degenerate coisotropic invariant tori of Hamiltonian systems by Parasyuk, I. O., Парасюк, І. О.

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Reduction and coisotropic invariant tori of Hamiltonian systems with non-poisson commutative symmetries. II by Parasyuk, I. O., Парасюк, І. О.

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Reduction and coisotropic invariant tori of Hamiltonian systems with non-poisson commutative symmetries. I by Parasyuk, I. O., Парасюк, І. О.

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Variables of the action-angle type on symplectic manifolds stratified by coisotropic tori by Parasyuk, I. O., Парасюк, И. О., Парасюк, И. О.

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Generalized and classical almost periodic solutions of Lagrangian systems convex on a compact set by Zakharin, S. F., Parasyuk, I. O., Захарін, С. Ф., Парасюк, І. О.

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Theorem on the existence of an invariant section over $\mathbb{R}^m$ for the indefinite monotone system in $\mathbb{R}^m \times \mathbb{R}^n$ by Lagoda, V. A., Parasyuk, I. O., Лагода, В. А., Парасюк, І. О.

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Estimation of the number of ultrasubharmonics for a two-dimensional almost autonomous Hamiltonian system periodic in time by Vakal, Yu. E., Parasyuk, I. O., Вакал, Ю. Є., Парасюк, І. О.

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Invariant tori of locally Hamiltonian systems close to conditionally integrable systems by Loveikin, Yu. V., Parasyuk, I. O., Ловейкін, Ю. В., Парасюк, І. О.

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Construction of Floquet–Bloch Solutions and Estimation of Lengths of Resonance Zones of One-Dimensional Schrödinger Equation with Smooth Potential by Denysenko, O. M., Parasyuk, I. O., Денисенко, О. М., Парасюк, І. О.

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Bifurcation of a Whitney-Smooth Family of Coisotropic Invariant Tori of a Hamiltonian System under Small Deformations of a Symplectic Structure by Kubichka, A. A., Parasyuk, I. O., Кубічка, А. А., Парасюк, І. О.

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Nilpotent flows of S1-invariant Hamiltonian systems on 4-dimensional symplectic manifolds by Parasyuk, I. O., Samoilenko, A. M., Парасюк, І. О., Самойленко, А. М.

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On the integral of a function along the trajectories of a nilpotent flow by Parasyuk, I. O., Samoilenko, A. M., Парасюк, І. О., Самойленко, А. М.

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Dynamical Bifurcation of Multifrequency Oscillations in a Fast-Slow System by Parasyuk, I. O., Repeta, B. V., Samoilenko, A. M., Парасюк, І. О., Репета, Б. В., Самойленко, А. М.

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Lipschitzian invariant tori of indefinite monotone system by Lagoda, V. A., Parasyuk, I. O., Samoilenko, A. M., Лагода, В. А., Парасюк, І. О., Самойленко, А. М.

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Nikolai Perestyuk (60th birthday) by Mitropolskiy, Yu. A., Parasyuk, I. O., Samoilenko, A. M., ShkiI, N. I., Митропольський, Ю. О., Парасюк, І. О., Самойленко, А. М., Шкіль, М. І.

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V. G. Georgii Mykolaiovych Polozhyi (on his 90th birthday) by Glushchenko, A. A., Lyashko, I. I., Mitropolskiy, Yu. A., Parasyuk, I. O., Samoilenko, A. M., Samoilenko, V. G., Глущенко, А. А., Ляшко, І. І., Митропольський, Ю. О., Парасюк, І. О., Самойленко, А. М., Самойленко, В. Г.

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On the 85th birthday of Anatolii Mykhailovych Samoilenko (02.01.1938 – 04.12.2020), outstanding Ukraininan mathematician by Kushnir, R. M., Lukovs’kyi, I. O., Makarov , V. L., Marchenko, V. O., Pastur, L. A., Perestyuk, M. O., Tymokha, O. M., Khruslov, Ye. Ya., Boichuk, O. A., Gutlyanskii, V. Ya., Kochubei , A. N., Nikitin, A. G., Portenko, M. I., Parasyuk, I. O., Petryshyn, R. I., Ronto, M. I., Tkachenko, V. I., Trofymchuk, S. I., Kushnir, R. M., Lukovs’kyi, I. O., Makarov , V. L., Marchenko, V. O., Pastur, L. A., Perestyuk, M. O., Tymokha, O. M., Khruslov, Ye. Ya., Boichuk, O. A., Gutlyanskii, V. Ya., Kochubei , A. N., Nikitin, A. G., Portenko, M. I., Parasyuk, I. O., Петришин, Р. І., Ronto, M. I., Tkachenko, V. I., Trofymchuk, S. I.

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On the 100th birthday of outstanding mathematician and mechanic Yurii Oleksiiovych Mytropol’s’kyi (03.01.1917 – 14.06.2008) by Berezansky, Yu. M., Boichuk, О. A., Korolyuk, V. S., Lukovsky, I. O., Makarov, V. L., Nikitin, A. G., Parasyuk, I. O., Perestyuk, N. A., Samoilenko, A. M., Sharkovsky, O. M., Березанський, Ю. М., Бойчук, О. А., Королюк, В. С., Луковський, І. О., Макаров, В. Л., Нікітін, А. Г., Парасюк, І. О., Перестюк, М. О., Самойленко, А. М., Шарковський, О. М.

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