Mathematische Zeitschrift · 2006 · 49 citations · 22 references
Natural SciencesMathematicsDifferential EquationsDynamical SystemsContinuous Dynamical SystemsExistence TheoryInitial Value ProblemsOperator TheoryPartial Differential EquationsSystems Of Differential EquationsAlmost Periodic SolutionsOscillation TheoryPeriodic OperatorsPeriodic Solutions Of Differential EquationsSecond-order Differential EquationsSturm - Liouville TheorySturm-liouville Theory
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