5 citations · 5 across the 2 of their papers we have counts for
4 papers
The Lyapunov function for Schrödinger operators with a periodic 2x2 matrix potential
Andrei Badanin, Jochen Brüning, Evgeny Korotyaev
We consider the Schrödinger operator on the real line with a 2x2 matrix valued 1-periodic potential. The spectrum of this operator is absolutely continuous and consists of interval…
Eigenvalues and Holonomy
Werner Ballmann, Jochen Brüning, Gilles Carron
We estimate the eigenvalues of connection Laplacians in terms of the non-triviality of the holonomy.
On boundary value problems for Dirac type operators. I. Regularity and self-adjointness
Jochen Brüning, Matthias Lesch
In a series of papers, we will develop systematically the basic spectral theory of (self-adjoint) boundary value problems for operators of Dirac type. We begin in this paper with t…
Spectral theory of boundary value problems for Dirac type operators
Jochen Brüning, Matthias Lesch
The purpose of this note is to describe a unified approach to the fundamental results in the spectral theory of boundary value problems, restricted to the case of Dirac type operat…