Singular perturbations, regularization and extension theory
2001 ◽
Vol 24
(6)
◽
pp. 1057-1078
◽
Keyword(s):
1989 ◽
Vol 41
(10)
◽
pp. 1117-1129
◽
Keyword(s):
2003 ◽
Vol 6
(4)
◽
pp. 349-384
◽
Keyword(s):
Keyword(s):
1985 ◽
Vol 110
(1)
◽
pp. 1-30
◽
Keyword(s):
1970 ◽
Vol 7
(2)
◽
pp. 281-313
◽