On Krein's Example
On limit sets for the discrete spectrum of complex Jacobi matrices
On Local Borg-Marchenko Uniqueness Results
On location of discrete spectrum for complex Jacobi matrices
On lower eigenvalue estimates for Toeplitz operators with radial symbols in Bergman spaces
On negative eigenvalues of two-dimensional Schrödinger operators
On nodal sets and nodal domains on S^2 and R^2
On norm resolvent convergence of Schrödinger operators with $δ'$-like potentials
On one inverse problem relatively domain for the plate
On one inverse spectral problem relatively domain
On periodic boundary value problem for the Sturm-Liouville operator
On Perturbations of Quasiperiodic Schroedinger Operators
On Povzner--Wienholtz-type Self-Adjointness Results for Matrix-Valued Sturm--Liouville Operators
On Pseudospectra of Matrix Polynomials and their Boundaries
On Rayleigh-Type Formulas for a Non-local Boundary Value Problem Associated with an Integral Operator Commuting with the Laplacian
On rays of minimal growth for elliptic cone operators
On realization of the Krein-Langer class Nk of matrix-valued functions in Hilbert spaces with indefinite metric
On Riesz Means of Eigenvalues
On Roots of Eigenpolynomials for Degenerate Exactly-Solvable Differential Operators
On Scattering for CMV Matrices