Schrödinger Operators with δ and δ′-Potentials Supported on Hypersurfaces

A description of all self-adjoint extensions of the Laplacian and Kreĭn-type resolvent formulas on non-smooth domains

(2011) Fritz Gesztesy et al.   JOURNAL D ANALYSE MATHEMATIQUE

The mixed boundary value problem, Krein resolvent formulas and spectral asymptotic estimates

(2011) Gerd Grubb   JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS

Spectral asymptotics for Robin problems with a discontinuous coefficient

(2011) Gerd Grubb   Journal of Spectral Theory

A remark on Schatten–von Neumann properties of resolvent differences of generalized Robin Laplacians on bounded domains

(2010) Jussi Behrndt et al.   JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS

Spectral theory of elliptic operators in exterior domains

(2010) M. M. Malamud   RUSSIAN JOURNAL OF MATHEMATICAL PHYSICS

Lower bound on the spectrum of the two-dimensional Schrödinger operator with a δ-perturbation on a curve

(2010) I. S. Lobanov et al.   THEORETICAL AND MATHEMATICAL PHYSICS

Spectral theory for perturbed Krein Laplacians in nonsmooth domains

(2009) Mark S. Ashbaugh et al.   ADVANCES IN MATHEMATICS

Nonlocal Robin Laplacians and some remarks on a paper by Filonov on eigenvalue inequalities

(2009) Fritz Gesztesy et al.   JOURNAL OF DIFFERENTIAL EQUATIONS

$$\mathcal {PT}$$ -Symmetric Waveguides

(2008) Denis Borisov et al.   INTEGRAL EQUATIONS AND OPERATOR THEORY

Estimates for the lowest eigenvalue of a star graph

(2008) B.M. Brown et al.   JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS