0384798 - ÚJF 2013 RIV CH eng J - Journal Article
Siegl, Petr
PT-Symmetric Laplace-Beltrami Operator in the Strip on a Sphere.
Integral Equations and Operator Theory. Roč. 73, č. 1 (2012), s. 5-6. ISSN 0378-620X. E-ISSN 1420-8989
Grant - others:European Science Foundation, ESF(XE) EW09-104
Institutional support: RVO:61389005
Keywords : Laplace-Beltrami operator on a sphere * PT-symmetry * non-self-adjoint boundary conditions * real spectrum
Subject RIV: BA - General Mathematics
Impact factor: 0.713, year: 2012 ; AIS: 0.568, rok: 2012
DOI: https://doi.org/10.1007/s00020-011-1932-x

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.
Permanent Link: http://hdl.handle.net/11104/0217344