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Information × Registration Number 0221U103961, 0118U000140 , R & D reports Title Mathematical Methods of Qualitative Analysis of dynamic systems, Control in Conditions of Conflict and Uncertainty popup.stage_title Head Petryshyn Roman I., Доктор фізико-математичних наук Registration Date 28-02-2021 Organization Yuriy Fedkovych Chernivtsi National University popup.description2 The method of averaging for new classes of multifrequency systems of differential-functional equations with multipoint and integral conditions is substantiated, the method of solving functions for differential equations with delay, with fractional derivatives and impulse action is developed, game methods of convergence are created; new classes of parabolic pseudodifferential equations with analytic symbols in spaces S and Cauchy problems and nonlocal multipoint time problems for differential-operator equations are investigated; increased accuracy approximation schemes for linear differential-difference equations are constructed and applied to the study of the stability of solutions; the existence of periodic solutions of an autonomous parabolic system of differential equations with small diffusion is proved; new models of dynamics of age structure of biological populations are investigated. Product Description popup.authors Bihun Yaroslav Yo Horodets’kyi Vasyl V Klevchuk Ivan I Martynyuk Olha V Matsenko Vasyl H Piddubna Larysa A Petryshyn Roman I Skutar Ihor D Cherevko Ihor M Chikrii Arkadii O popup.nrat_date 2021-02-28 Close