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Spectral monotonicity for Schr\"odinger operators on metric graphs
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rohleder, Jonathan Seifert, Christian |
| Copyright Year | 2018 |
| Abstract | We study the influence of certain geometric perturbations on the spectra of self-adjoint Schr\"odinger operators on compact metric graphs. Results are obtained for radially symmetric vertex conditions, which, amongst others, include $\delta$ and $\delta'$-type conditions. We show that adding edges to the graph or joining vertices changes the eigenvalues monotonously. However, the monotonicity properties may differ from what is known for the previously studied cases of Kirchhoff (or standard) and $\delta$-conditions and may depend on the signs of the coefficients in the vertex conditions. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://arxiv.org/pdf/1804.01827v2.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |