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Certain higher monotonicity properties of \(i\)-th derivatives of solutions of \(y''+a(t)y'+b(t)y = 0\). (English) Zbl 0318.34048


MSC:

34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
34A30 Linear ordinary differential equations and systems
26D10 Inequalities involving derivatives and differential and integral operators
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