Morchało, Jarosław Asymptotic equivalence of functional and ordinary differential equations. (English) Zbl 0645.34033 Fasc. Math. 17, 11-17 (1987). Summary: A version of the variation of constants formula for nonlinear systems is used to study the comparative asymptotic behavior of the systems \(x'=f(t,x)\) and \(y'=f(t,y)+g(t,y_ t)\). MSC: 34C20 Transformation and reduction of ordinary differential equations and systems, normal forms 34E99 Asymptotic theory for ordinary differential equations 34K25 Asymptotic theory of functional-differential equations 34A34 Nonlinear ordinary differential equations and systems Keywords:variation of constants formula × Cite Format Result Cite Review PDF