imm.az
In the paper an inverse problem by two given spectrum for second orderdifferential operator with singularity of type δconstant), is studied. It is well known that the two spectrum {λn} and {µ }uniquely determine the potential function q (x) in a singular Sturm-Liouvilleequation defined on interval [0,π] . One of the aims of the paper is to prove the generalized degeneracy of thekernel of