Hempel, Rainer A left-indefinite generalized eigenvalue problem for Schrödinger operators. (German) Zbl 0754.35026 München: Univ. xv, 121 S. (1987). Cited in 9 Documents MSC: 35J10 Schrödinger operator, Schrödinger equation 35P05 General topics in linear spectral theory for PDEs 35-02 Research exposition (monographs, survey articles) pertaining to partial differential equations PDF BibTeX XML Cite \textit{R. Hempel}, A left-indefinite generalized eigenvalue problem for Schrödinger operators. München: Univ. (1987; Zbl 0754.35026) OpenURL