E. Rosenberger

activity

20132026

most citedHarmonic Approximation of Difference Operators

13 citations · 37 across the 7 of their papers we have counts for

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math.SP2025

Weyl asymptotics for pseudodifferential operators in a discrete setting

Markus Klein, Enrico Reiss, Elke Rosenberger

We prove a sharp Weyl estimate for the number of eigenvalues belonging to a fixed interval of energy of a self-adjoint difference operator acting on $ℓ^{2} (ε Z^{d})$ if the…

math.SP2017★ 2 cited

Tunneling for a class of Difference Operators: Complete Asymptotics

Markus Klein, Elke Rosenberger

We analyze a general class of difference operators $H_{ε} = T_{ε} + V_{ε}$ on $ℓ^{2} (ε Z^{d})$ , where $V_{ε}$ is a multi-well poten…