A new approach to minimum and comparison principles for nonlinear ordinary differential operators of second order
1995 ◽
Vol 25
(9-10)
◽
pp. 1071-1078
◽
1970 ◽
Vol 69
(1)
◽
pp. 77-84
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):
1969 ◽
Vol 310
(1503)
◽
pp. 565-577
◽
1970 ◽
Vol 23
(5)
◽
pp. 819-840
◽
Keyword(s):
2003 ◽
Vol 3
(2)
◽
pp. 235-252
1990 ◽
Vol 41
(2)
◽
pp. 205-226
◽
Keyword(s):