共 22 条
[2]
Coddington E.A., 1955, THEORY ORDINARY DIFF
[3]
COPEL W, 1971, LECTURE NOTES MATH, V220
[7]
SIGN PROPERTIES OF GREENS-FUNCTIONS FOR 2 CLASSES OF BOUNDARY-VALUE-PROBLEMS
[J].
CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES,
1987, 30 (01)
:28-35
[8]
ELOE PW, 1993, J DIFFERNETIAL EQUAT, V102
[9]
GUSTAFSON GB, 1976, ROCKY MOUNTAIN J MAT, V6, P457
[10]
LEVIN AJ, 1969, RUSS MATH SURV, V241, P43