Averaging method in multipoint problems of the theory of nonlinear oscillations von Petryshyn, Ya. R., Samoilenko, A. M., Петришин, Я. Р., Самойленко, А. М.

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Theorems on instability of systems with respect to linear approximation von Slyusarchuk, V. E., Слюсарчук, В. Е., Слюсарчук, В. Е.

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Complexity of projective methods for the solution of ill-posed problems von Solodkii, S. G., Солодкий, С. Г., Солодкий, С. Г.

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On invariant tori of stochastic systems on a plane von Kopas', I. N., Stanzhitskii, A. N., Копась, И. Н., Станжицкий, А. Н., Копась, И. Н., Станжицкий, А. Н.

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$J$-fractional regularization of linear ill-posed equations von Syavavko, M. S., Сявавко, М. С.

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On periodic solutions of countable systems of linear and quasilinear difference equations with periodic coefficients von Samoilenko, M. V., Teplinsky, Yu. V., Самойленко, М. В., Теплинский, Ю. В., Самойленко, М. В., Теплинский, Ю. В.

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Strongly nonlinear degenerate elliptic equations with discontinuous coefficients. I von Bonafede, S., Бонафеде, С.

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Inner turning point in the theory of singular Perturbations von Bobochko, V. N., Бобочко, В. H., Бобочко, В. H.

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Chebyshev polynomial approximation on a closed subset with unique limit point and analytic extension of functions von Dovgoshei, A. A., Довгошей, А. А., Довгошей, А. А.

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On branches of small solutions of certain operator equations von Dymarskii, Ya. M., Дымарский, Я. М., Дымарский, Я. М.

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Generalization of Berg-Dimovski convolution in spaces of analytic functions von Zvozdetskii, T. I., Звоздецький, Т. І.

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On a Numerical-Analytic method for second-order difference equations von Iteiwi, A. M., Итейви, А. М., Итейви, А. М.

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Solvability of nonlinear elliptic systems with measure von Kalita, E. A., Калита, Е. А., Калита, Е. А.

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High-order asymptotics of a solution of one problem of optimal control over a distributed system with rapidly oscillating coefficients von Kogut, P. I., Когут, П. І.

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On the solvability of physically nonlinear problems of Thermoelasticity von Komarov, G. N., Oshkhunov, M. M., Комаров, Г. Н., Ошхунов, М. М., Комаров, Г. Н., Ошхунов, М. М.

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On the radii of convexity and starlikeness for some special classes of analytic functions in a disk von Kotsur, I. M., Kotsur, M. F., Коцур, И. М., Коцур, М. Ф., Коцур, И. М., Коцур, М. Ф.

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On the equivalence of the Euler-Pommier operators in spaces of analytic functions von Nagnibida, N. I., Нагнибіда, Н. І.

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Regularity of solutions of Degenerate Quasilinear Parabolic Equations (weighted case) von Skrypnik, I. I., Скрыпник, И. И., Скрыпник, И. И.

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Two-sided estimates of a solution of the Neumann problem as $t \rightarrow \infty$ for a second-order Quasilinear Parabolic Equation von Tedeev, A. F., Тедеев, А. Ф., Тедеев, А. Ф.

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Well-posedness of the cauchy problem for complete second-order operator-differential equations von Shklyar, A. Ya., Шкляр, А. Я., Шкляр, А. Я.

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