The Hardy-Rellich Inequality for Polyharmonic Operators

The Hessenberg matrix and the Riemann mapping

The hybrid spectral problem and Robin boundary conditions

The index formula and the spectral shift function for relatively trace class perturbations

The inverse problem for perturbed harmonic oscillator on the half-line with Dirichlet boundary conditions

The inverse resonance problem for $\Z_2$-symmetric analytic obstacles in the plane

The inverse spectral problem for first order systems on the half line

The inverse spectral problem for the discrete cubic string

The inverse Sturm-Liouville problem with mixed boundary conditions

The Kalman--Yakubovich--Popov inequality for passive discrete time-invariant systems

The Klein-Gordon equation with multiple tunnel effect on a star-shaped network: Expansions in generalized eigenfunctions

The Krein spectral shift and rank one perturbations of spectra

The Krein-von Neumann Extension and its Connection to an Abstract Buckling Problem

The Laplace-Beltrami operator in almost-Riemannian Geometry

The Lie algebra f4(Os) (split f4) with Mathematica

The localization effect for eigenfunctions of the mixed boundary value problem in a thin cylinder with distorted ends

The Lyapunov function for Schrödinger operators with a periodic 2x2 matrix potential

The Metric Anomaly of Analytic Torsion at the Boundary of an Even Dimensional Cone

The Metric Anomaly of Analytic Torsion on Manifolds with Conical Singularities

The minimum rank of universal adjacency matrices