Abstract
The number of negative eigenvalues of self-adjoint Laplacians on metric graphs is calculated in terms of the boundary conditions and the underlying geometric structure. This extends and complements earlier results by Kostrykin and Schrader (2006 Contemp. Math. 415 201-25).
| Original language | English |
|---|---|
| Article number | 474006 |
| Journal | Journal of Physics A: Mathematical and Theoretical |
| Volume | 43 |
| Issue number | 47 |
| DOIs | |
| Publication status | Published - 2010 |
Subject classification (UKÄ)
- Mathematics