Title: Sturmian theory for ordinary differential equations
Subjects: Differential equations, Sturm-Liouville-Operator, Sturm-Liouville-Differenzengleichung, Differentialgleichung, Equations differentielles, Gewohnliche Differentialgleichung, Lineare gewohnliche Differentialgleichung, Randwertproblem, Mathematics, Global analysis (Mathematics)