共 7 条
[1]
Alessandrini G, 1988, APPL ANAL, V27, P153, DOI [10.1080/00036818808839730, DOI 10.1080/00036818808839730]
[2]
COURANT R, 1953, METHODS MATH PHYSICS, V1
[3]
Gilbarg D., 1983, ELLIPTIC PARTIAL DIF
[5]
NACHMAN A, 1988, COMMUN MATH PHYS, V115, P525
[6]
RAKESH WS, 1988, COMMUN PART DIFF EQ, V13, P87
[7]
SUN Z, IN PRESS J MATH ANAL