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Sturmian theory on measure chains. (English) Zbl 0868.39007

Summary: The basic results in Sturmian theory, oscillation, nonoscillation, and Riccati techniques are extended to dynamical equations defined on arbitrary time scales (measure chains). This allows one to treat the continuous, discrete, as well as more general equations simultaneously.

MSC:

39A12 Discrete version of topics in analysis
39A10 Additive difference equations
34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations