共 50 条
- [34] On H-4-perturbations of self-adjoint operators PARTIAL DIFFERENTIAL EQUATIONS AND SPECTRAL THEORY, 2001, 126 : 179 - 196
- [35] Boundary conditions for singular perturbations of self-adjoint operators OPERATOR METHODS IN ORDINARY AND PARTIAL DIFFERENTIAL EQUATIONS, 2002, 132 : 333 - 346
- [36] Finite-dimensional perturbations of self-adjoint operators Integral Equations and Operator Theory, 1999, 34 : 127 - 164
- [39] Singular Perturbations and Operators in Rigged Hilbert Spaces Mediterranean Journal of Mathematics, 2016, 13 : 2011 - 2024