TY  - JOUR
AU  - Emanuela Caliceti
AU  - Francesco Cannata
AU  - Sandro Graffi
TI  - $\mathcal P\mathcal T$ Symmetric Schrödinger Operators: Reality of the Perturbed Eigenvalues
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2010
VL  - 6
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2010_6_a8/
LA  - en
ID  - SIGMA_2010_6_a8
ER  -