Konstantin Pankrashkin

activity

20022026

most citedSpectra of self-adjoint extensions and applications to solvable Schroedinger operators

195 citations · 1.2k across the 66 of their papers we have counts for

collaborators

Showing 2022Show all

3 papers · 1 filter

math.SP2022★ 5 cited

Curvature contribution to the essential spectrum of Dirac operators with critical shell interactions

Badreddine Benhellal, Konstantin Pankrashkin

We discuss the spectral properties of three-dimensional Dirac operators with critical combinations of electrostatic and Lorentz scalar shell interactions supported by a compact smo…

math.SP2022★ 1 cited

On Schrödinger operators with $δ^{'}$ -potentials supported on star graphs

Konstantin Pankrashkin, Marco Vogel

The spectral properties of two-dimensional Schrödinger operators with $δ^{'}$ -potentials supported on star graphs are discussed. We describe the essential spectrum and give a complete…

math.SP2022★ 3 cited

Asymptotics of Robin eigenvalues on sharp infinite cones

Konstantin Pankrashkin, Marco Vogel

Let $ω \subset R^{n}$ be a bounded domain with Lipschitz boundary. For $ε > 0$ and $n \in N$ consider the infinite cone $Ω_{\varepsilon}:=\big\{(x_1,x')\in (0,\…

Curvature contribution to the essential spectrum of Dirac operators with critical shell interactions

On Schrödinger operators with δ′-potentials supported on star graphs

Asymptotics of Robin eigenvalues on sharp infinite cones

On Schrödinger operators with $δ^{'}$ -potentials supported on star graphs