TY  - JOUR
AU  - Gesztesy, Fritz
AU  - Tkachenko, Vadim
TI  - When is a non-self-adjoint Hill operator a spectral operator of scalar type?
JO  - Comptes Rendus. Mathématique
PY  - 2006
SP  - 239
EP  - 242
VL  - 343
IS  - 4
PB  - Elsevier
UR  - http://www.numdam.org/articles/10.1016/j.crma.2006.06.014/
DO  - 10.1016/j.crma.2006.06.014
LA  - en
ID  - CRMATH_2006__343_4_239_0
ER  -