On Self-adjoint and J-self-adjoint Dirac-type Operators: A Case Study
On Selfadjoint Subspace of One-Speed Boltzmann Operator
On semiclassical and universal inequalities for eigenvalues of quantum graphs
On some properties of nonnegative weakly irreducible tensors
On spectral analysis of a magnetic Schrodinger operator on planar mixed automorphic forms
On spectral estimates for two-dimensional Schrödinger operators
On spectral minimal partitions II, the case of the rectangle
On spectral minimal partitions: the case of the sphere
On spectral properties of the fourth order differential operator with singular coefficients
On spectral properties of translationally invariant magnetic Schrödinger operators
On Spectral Theory for Schrödinger Operators with Strongly Singular Potentials
On spectrum and approximations of one class of sign-symmetric matrices
On spectrum of a periodic operator with a small localized perturbation
On Symmetries in the Theory of Finite Rank Singular Perturbations
On Temple--Kato like inequalities and applications
On the absolutely continuous spectrum in a model of irreversible quantum graph
On the Absolutely Continuous Spectrum of Sturm-Liouville Operators with Applications to Radial Quantum Trees
On the absolutely continuous spectrum of the Laplace-Beltrami operator acting on p-forms for a class of warped product metrics
On the Accurate Finite Element Solution of a Class of Fourth Order Eigenvalue Problems
On the approximate normality of eigenfunctions of the Laplacian