## On the fuzzy initial value problem.(English)Zbl 0643.34005

The paper deals with the initial value problem $$x'(t)=f(t,x(t)),$$ $$x(0)=x_ 0$$ with fuzzy initial value and with deterministic or fuzzy function f. The discussion refers to two different approaches (the extension principle and the use of extremal solutions, respectively), and includes also generalizations to fuzzy integral equations and fuzzy functional differential equations.
Reviewer: V.C.Boffi

### MSC:

 34A12 Initial value problems, existence, uniqueness, continuous dependence and continuation of solutions to ordinary differential equations
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### References:

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