TY - BOOK AU - Jorgens Konrad AU - Weidmann Joachim TI - Spectral properties of hamiltonian operators T2 - Lecture notes in mathematics; 313 U1 - B7:13, L3 PY - 1973/// CY - Berlin PB - Springer-Verlag KW - Geometry KW - Mathematics N1 - Appendix 133-137p ER -