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Remarks concerning J. Witte’s theorem and its applications. (English) Zbl 0627.34073
The authors show uniqueness for the solution of the initial value problem $$\dot x(t)=f(t,x)$$, $$x(0)=x_ 0$$ using a generalization of a Kamke comparison function.
Reviewer: R.Nagel

MSC:
 34G20 Nonlinear differential equations in abstract spaces 34A12 Initial value problems, existence, uniqueness, continuous dependence and continuation of solutions to ordinary differential equations
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