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Asymptotic convergence criteria of solutions of delayed functional differential equations. (English) Zbl 1025.34062
The author studies the scalar equation x ˙=f(t,x t ) under the assumption that every constant is its solution. Criteria and sufficient conditions for the convergence of solutions are found. It is proved that all solutions are convergent if and only if there exists at least one increasing and convergent solution. As application, criteria for some classes of linear and nonlinear equations are obtained.
MSC:
34K07Theoretical approximation of solutions of functional-differential equations
34K25Asymptotic theory of functional-differential equations
34K05General theory of functional-differential equations