Singular selfadjoint Sturm-Liouville problems
Singular selfadjoint Sturm-Liouville problems
Singular self-adjoint boundary conditions for Sturm-Liouville (S-L) problems are characterized.We believe this characterization is (i) new, (ii) simpler and more explicit than the well known characterization, and (iii) it is an exact parallel of the regular case. 1. Introduction.There are two fundamental classes of boundary value problems for the Sturm-Liouville …