共 18 条
[4]
FRIEDRICHS KO, WELL POSED PROBLEMS
[5]
Hormander L., 1964, Linear partial differential operators
[6]
Kato T., 1966, PERTURBATION THEORY
[7]
Kato T., 1976, LECT NOTES MATH, V565, P104
[9]
LIONS JL, 1973, LECTURE NOTES MATH, V323