Inverse square singularities and eigenparameter-dependent boundary conditions are two sides of the same coin
Inverse square singularities and eigenparameter-dependent boundary conditions are two sides of the same coin
Abstract We show that inverse square singularities can be treated as boundary conditions containing rational HerglotzāNevanlinna functions of the eigenvalue parameter with āa negative number of polesā. More precisely, we treat in a unified manner one-dimensional Schrƶdinger operators with either an inverse square singularity or a boundary condition containing a ā¦