Perturbation of differential operators on high-codimension manifold and the extension theory for symmetric linear relations in an indefinite metric space
1992 ◽
Vol 92
(3)
◽
pp. 1032-1037
◽
Keyword(s):
1997 ◽
Vol 113
(3)
◽
pp. 1497-1507
◽
1978 ◽
Vol 60
(3)
◽
pp. 892-907
◽
Keyword(s):
1978 ◽
Vol 12
(1)
◽
pp. 70-71
◽
Keyword(s):
Keyword(s):