The existence of multiple positive solutions to boundary value problems of nonlinear delay differential equations with countably many singularities on infinite interval
2010 ◽
Vol 233
(9)
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pp. 2189-2199
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2005 ◽
Vol 301
(2)
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pp. 457-476
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Multiple positive solutions for boundary value problems of second-order delay differential equations
2002 ◽
Vol 15
(5)
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pp. 575-583
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2007 ◽
Vol 326
(1)
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pp. 641-654
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2005 ◽
Vol 18
(6)
◽
pp. 621-630
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2018 ◽
Vol 23
(2)
◽
pp. 809-836
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2000 ◽
Vol 41
(3-4)
◽
pp. 433-445
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