Finite-rank perturbation parametrization for powers of Sturm–Liouville operators
Let L0n{\bf L}^n_0L0n, with n∈Nn\in\mathbb{N}n∈N, be a self-adjoint extension of the minimal operator LminnL^n_{\scriptstyle \text{min}}Lminn on L2[(a,b),w]L^2[(a,b),w]L2[(a,b),w], with deficiency indices (m,m)(m,m)(m,m) whe…