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Nonlinear extensions of limit-point criteria. (English) Zbl 0273.34008


MSC:

34B20 Weyl theory and its generalizations for ordinary differential equations
34L99 Ordinary differential operators
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References:

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[17] Wong, J.S.W.: Remark on a theorem of A. Wintner. Enseignement math.13, 103-106 (1967). · Zbl 0173.09903
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