Continuous spectrum of second-order ordinary differential operators
Keyword(s):
1979 ◽
Vol 84
(3-4)
◽
pp. 197-211
◽
1970 ◽
Vol 69
(1)
◽
pp. 77-84
1989 ◽
Vol 142
(2)
◽
pp. 591-604
◽
2003 ◽
Vol 54
(5)
◽
pp. 822-838
◽
1988 ◽
Vol 109
(1-2)
◽
pp. 127-144
◽
1978 ◽
Vol 79
(3-4)
◽
pp. 193-226
◽
1961 ◽
Vol 9
(1)
◽
pp. 28-30
Keyword(s):
1995 ◽
Vol 25
(9-10)
◽
pp. 1071-1078
◽
1969 ◽
Vol 310
(1503)
◽
pp. 565-577
◽
1970 ◽
Vol 23
(5)
◽
pp. 819-840
◽