共 50 条
- [36] Oscillation and spectral properties of self-adjoint differential operators Nonlinear Analysis, Theory, Methods and Applications, 1997, 30 (03): : 1375 - 1384
- [37] The spectral function for some products of self-adjoint operators Mathematical Notes, 2007, 81 : 847 - 850
- [39] Spectral Gaps for Self-Adjoint Second Order Operators ZEITSCHRIFT FUR ANALYSIS UND IHRE ANWENDUNGEN, 2012, 31 (04): : 473 - 505