Oscillation properties of the spectrum of a boundary value problem on a graph
The authors present a result on oscillation properties of eigenvectors associated with a Sturm-Liouville problem for \(u(x)\), where the independent variable \(x\) takes values on a graph and \(u\) vanishes at the vertices of this graph.
oscillation properties of eigenvectors of Sturm-Liouville operators
scientific article; zbMATH DE number 1158920