Sturm-Liouville boundary value problems with operator potentials and unitary equivalence

Mark Malamud, Hagen Neidhardt

Consider the minimal Sturm-Liouville operator $A=A_{\min }$ generated by the differential expression $\mathcal{A}:=-\frac{d^2}{d{t}^2}+T$ in the Hilbert space $L^2(\mathbb{R}…