An example of a stochastic differential equation with the property of weak non-uniqueness of a solution by Kopytko, B.I., Portenko, M.I.

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The Brownian motion process with generalized diffusion matrix and drift vector by Kopytko, B.I., Novosyadlo, A.F.

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Mykola Ivanovych Portenko (on his 80th birthday) by Kopytko, B. I., Osypchuk, M. M., Kopytko, B. I., Osypchuk, M. M., Копитко, Б. I., Осипчук, М. М.

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Mykola Ivanovych Portenko (on his 75th birthday) by Dorogovtsev, A. A., Kopytko, B.I., Osipchuk, M. M., Дороговцев, А. А., Копитко, Б. І., Осипчук, М. М.

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Mykola Ivanovych Portenko (On His 60th Birthday) by Dorogovtsev, A. A., Kopytko, B.I., Korolyuk, V. S., Mitropolskiy, Yu. A., Samoilenko, A. M., Sytaya, G. N., Skorokhod, A. V., Дороговцев, А. А., Копитко, Б. І., Королюк, В. С., Митропольський, Ю. О., Самойленко, А. М., Сита, Г. М., Скороход, А. В.

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