On the spectral properties of the non-self-conjugate operator $ i\varepsilon\dfrac{d^2}{dx^2}+q(x)$
Stepin, S AVolume:
53
Language:
english
Journal:
Russian Mathematical Surveys
DOI:
10.1070/RM1998v053n03ABEH000054
Date:
June, 1998
File:
PDF, 1.02 MB
english, 1998