On the pseudospectra of Berezin-Toeplitz operators
On the regularity of the Hausdorff distance between spectra of perturbed magnetic Hamiltonians
On the resolvent of the Dirac operator in $\Bbb R^2$
On the resonances and eigenvalues for a 1D half-crystal with localised impurity
On the resonances of convex co-compact subgroups of arithmetic groups
On the Riesz Basis Property of the Eigen- and Associated Functions of Periodic and Antiperiodic Sturm-Liouville Problems
On the second largest eigenvalue of the signless Laplacian
On the sharpness of a certain spectral stability estimate for the Dirichlet Laplacian
On the similarity of Sturm-Liouville operators with non-Hermitian boundary conditions to self-adjoint and normal operators
On the Singular Weyl-Titchmarsh Function of Perturbed Spherical Schroedinger Operators
On the spectra of generalized Fibonacci and Fibonacci-like operators
On the spectra of Schwarz matrices with certain sign patterns
On the Spectral Analysis of Direct Sums of Riemann-Liouville Operators in Sobolev Spaces of Vector Functions
On the spectral estimates for Schrödinger type operators. The case of small local dimension
On the spectral estimates for the Schrödinger operator on $\Z^d,\ d\ge3$
On the Spectral Gap for Convex Domains
On the Spectral Properties of the Landau Hamiltonian Perturbed by a moderately Decaying Magnetic Field
On the spectral Theory of Operator Measures
On the spectral theory of operators on trees
On the spectral theory of trees with finite cone type