共 8 条
[3]
Ikebe, 1960, ARCH RATION MECH AN, V5, P1, DOI [10.1007/BF00252896, DOI 10.1007/BF00252896)]
[4]
Kato T., 1966, PERTURBATION THEORY, V132, P396
[5]
ODEH F, 1965, P AM MATH SOC, V16, P363
[6]
PUTNAM CR, 1967, COMMUTATION PROPERTI