共 13 条
- [1] DOUGLAS RG, 1968, MICH MATH J, V15, P385
- [3] FUHRMANN PA, 1968, T AM MATH SOC, V132, P55
- [4] GEARHART L, 1975, THESIS U ILLINOIS
- [5] Halmos PR., 1961, J REINE ANGEW MATH, V208, P102
- [6] HILLE E, 1957, AM MATH SOC COLLOQ P, V31, P664
- [8] Lax PD., 1967, SCATTERING THEORY
- [9] Moeller J.W., 1962, J MATH ANAL APPL, V4, P276, DOI DOI 10.1016/0022-247X(62)90055-0