Document Zbl 0442.34031

Oscillation theorems for second order ordinary differential inequalities and equations with alternating coefficients. (English) Zbl 0442.34031

An. Stiint. Univ. Al. I. Cuza Iasi, N. Ser., Sect. Ia 26, 67-76 (1980).

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scan of Zbl 0442.34031

34C10	Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
34C29	Averaging method for ordinary differential equations
34A99	General theory for ordinary differential equations

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