2 papers
math.SP2021
On isospectral metric graphs
Pavel Kurasov, Jacob Muller
A new class of isospectral graphs is presented. These graphs are isospectral with respect to both the normalised Laplacian on the discrete graph and the standard differential Lapla…
math.SP2020
The Krein-von Neumann extension for Schrödinger operators on metric graphs
Jacob Muller, Jonathan Rohleder
The Krein-von Neumann extension is studied for Schrödinger operators on metric graphs. Among other things, its vertex conditions are expressed explicitly, and its relation to other…