Working with Compact metric graphs part2(AI 2024) – Monodeep Mukherjee

Spectral Theory for Schrödinger operators on compact metric graphs with δ and δ′ couplings: a survey

Authors: Jonathan Rohleder, Christian Seifert

Abstract: Spectral properties of Schrödinger operators on compact metric graphs are studied and special emphasis is put on differences in the spectral behavior between different classes of vertex conditions. We survey recent results especially for δ and δ′ couplings and demonstrate the spectral properties on many examples. Amongst other things, properties of the ground state eigenvalue and eigenfunction and the spectral behavior under various perturbations of the metric graph or the vertex conditions are considered

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