12 citations · 29 across the 7 of their papers we have counts for
7 papers
Entanglement of boundary conditions giving rise to spontaneous symmetry breaking in quantum mechanics
A. Restuccia, A. Sotomayor, V. Strauss
We study spontaneous symmetry breaking in one dimensional quantum mechanical problems in terms of two-point boundary problems which lead to singular potentials containing Dirac del…
On the one-dimensional harmonic oscillator with a singular perturbation
Vladimir Strauss, Monika Winklmeier
In this paper we investigate the one-dimensional harmonic oscillator with a singular perturbation concentrated in one point. We describe all possible selfadjoint realizations and w…
Local spectral theory for normal operators in Krein spaces
Friedrich Philipp, Vladimir Strauss, Carsten Trunk
Sign type spectra are an important tool in the investigation of spectral properties of selfadjoint operators in Krein spaces. It is our aim to show that also sign type spectra for…
On Factorization of a Perturbation of a J-selfadjoint Operator Arising in Fluid Dynamics
Marina Chugunova, Vladimir Strauss
We prove that some perturbation of a J-selfadjoint second order differential operator admits factorization and use this new representation of the operator to prove compactness of i…
Factorization of the Indefinite Convection-Diffusion Operator
Marina Chugunova, Vladimir Strauss
We prove that some non-self-adjoint differential operator admits factorization and apply this new representation of the operator to construct explicitly its domain. We also show th…
On classification of normal operators in real spaces with indefinite scalar product
Olga Holtz, Vladimir Strauss
A real finite-dimensional space with indefinite scalar product having v- negative squares and v+ positive ones is considered. The paper presents a classification of operators that…