79 citations · 501 across the 68 of their papers we have counts for
5 papers · 2 filters
Boundary value problems for adjoint pairs of operators
Jussi Behrndt
The notion of quasi boundary triples and their Weyl functions from extension theory of symmetric operators is extended to the general framework of adjoint pairs of operators under…
Nonrelativistic Limit of Generalized MIT Bag Models and Spectral Inequalities
Jussi Behrndt, Dale Frymark, Markus Holzmann +1
For a family of self-adjoint Dirac operators subject to generalized MIT bag boundary conditions on domains in it is shown that…
On two-dimensional Dirac operators with -shell interactions supported on unbounded curves with straight ends
Jussi Behrndt, Pavel Exner, Markus Holzmann +1
In this paper we study the self-adjointness and spectral properties of two-dimensional Dirac operators with electrostatic, Lorentz scalar, and anomalous magnetic -shell interact…
Approximation of Dirac operators with -shell potentials in the norm resolvent sense, I. Qualitative results
Jussi Behrndt, Markus Holzmann, Christian Stelzer
In this paper the approximation of Dirac operators with general -shell potentials supported on -curves in or -surfaces in , which may be b…
Perturbation and spectral theory for singular indefinite Sturm-Liouville operators
Jussi Behrndt, Philipp Schmitz, Gerald Teschl +1
We study singular Sturm-Liouville operators of the form \[ \frac{1}{r_j}\left(-\frac{\mathrm d}{\mathrm dx}p_j\frac{\mathrm d}{\mathrm dx}+q_j\right),\qquad j=0,1, \] in $L^2((a,b)…