The Singularities of the Wave Trace of the Basic Laplacian of a Riemannian Foliation

The singularly continuous spectrum and non-closed invariant subspaces

The spatial spectrum of the primary geomagnetic field and the spectrum of its variations in time

The spectra of the spherical and euclidean triangle groups

The spectral density function for the Laplacian on high tensor powers of a line bundle

The spectral density function of a toric variety

The spectral density of the scattering matrix for high energies

The Spectral Mapping Theorem

The spectral shift function and the invariance principle

The spectral shift function for planar obstacle scattering at low energy

The Spectral Shift Operator

The Spectral Theory of Tensors (Rough Version)

The Spectrum and the Spectral Type of the Off-Diagonal Fibonacci Operator

The spectrum minimum for random Schrödinger operators with indefinite sign potentials

The spectrum of Schrödinger operators and Hodge Laplacians on conformally cusp manifolds

The Spectrum of the Almost Mathieu Operator

The spectrum of the scattering matrix near resonant energies in the semiclassical limit

The TAN $2Θ$ Theorem for Indefinite Quadratic Forms

The threshold effects for a family of Friedrichs models under rank one perturbations

The Transformation Operator for One-Dimensional Schroedinger Operators on Almost Periodic Infinite-Gap Backgrounds