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Ніна Опанасівна Вірченко (до 90-річчя від дня народження)
The article is devoted to the 90th anniversary of famous Ukrainian scientist. We are talking about professor of mathematics Nina Virchenko. We cover her tough life journey, scientific, educationalExpand
Нелінійні крайові задачі, не розв'язані відносно похідної
UDC 517.9 We found constructive necessary and sufficient solvability conditions as well as a scheme of construction of solutions for a nonlinear boundary-value problem that is not solved withExpand
ri io od di ic c s so ol lu ut ti io on ns s o of f s se ec co on nd d- -o
In this paper we study the existence and approximation of the periodic solutions for certain systems of second-order of integro- differential equations unsolvable for the highest derivative by usingExpand
Структура бінарних перетворень типу Дарбу та їх застосування в теорії солітонів
On the basis of generalized Lagrange identity for pairs of formally adjoint multidimensional differential operators and a special differential geometric structure associated with this identity, weExpand