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Qualitative analysis of the periodically forced relaxation oscillations. (English) Zbl 0448.34032

Mem. Am. Math. Soc. 244, 147 p. (1981).

MSC:

34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
34D30 Structural stability and analogous concepts of solutions to ordinary differential equations
34C25 Periodic solutions to ordinary differential equations
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