共 19 条
[1]
Arai M., 1982, PUBL RES I MATH SCI, V18, P973
[3]
EVANS WD, 1970, P LOND MATH SOC, V20, P537
[4]
Kato T., 1966, PERTURBATION THEORY
[5]
KLAUS M, 1979, COMMUN MATH PHYS, V64, P171, DOI 10.1007/BF01197512
[8]
Rellich F., 1953, EIGENWERTTHEORIE PAR, V2
[9]
Rellich F, 1943, MATH Z, V49, P702