A. M. Samoĭlenko

• Countable systems of differential equations
• Different͡s︡ialʹnye uravnenii͡a︡
• Elements of the mathematical theory of multi-frequency oscillations
• Impulsive differential equations
• Multifrequency oscillations of nonlinear systems
• Chislenno-analiticheskie metody issledovanii͡a︡ periodicheskikh resheniĭ
• Chislenno-analiticheskie metody issledovanii͡a︡ resheniĭ kraevykh zadach
• Chislenno-analiticheskie metody v teorii kraevykh zadach obyknovennykh different͡s︡ialʹnykh uravneniĭ
• Chislenno-analiticheskie metody v teorii periodicheskikh resheniĭ s chastnymi proizvodnymi
• Ėlementy matematicheskoĭ teorii mnogochastotnykh kolebaniĭ
• Numerical-analytic methods of investigating periodic solutions