Abstract
Numerical analysis indicates that all eigenvalues of a PT-symmetric Laplace-Beltrami operator in the strip on a sphere are real. However, a complete proof is not known.
| Original language | English |
|---|---|
| Pages (from-to) | 5-6 |
| Number of pages | 2 |
| Journal | Integral Equations and Operator Theory |
| Volume | 73 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - May 2012 |
| Externally published | Yes |
Keywords
- Laplace-Beltrami operator on a sphere
- non-self-adjoint boundary conditions
- PT-symmetry
- real spectrum
ASJC Scopus subject areas
- Analysis
- Algebra and Number Theory