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Information × Registration Number 0208U006336, 0107U010797 , R & D reports Title Asymptotic and qualitative researchmethods of evolutionary systems. popup.stage_title Head Samoilenko Anatoly Mihajlovich, Registration Date 09-09-2008 Organization National Technscal University of Ukraine "Kiev Polytechnic Institute". popup.description2 Conditions at which global decisions of systems of the differential equations with deviating argument are decisions of corresponding systems of the usual differential equations are received. Conditions at which decisions on half-axis the systems differential-functional equations are decisions of some system of the usual differential equations are found. New properties of decisions the differential-functional equations in a vicinity special points on infinity are found. Questions of uniqueness (to within shifts) positive wave front with the set allowable speed are investigated. At present uniqueness is proved only in two boundary cases: for small delays and the big speeds. The family unimodular piece-linear functions for which the problem of existence and uniqueness of wave fronts can be completely solvable is considered.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close