Existence of positive solutions of the Cauchy problem for a second-order differential equation
2020 ◽
Vol 20
(1)
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pp. 15-20
2008 ◽
Vol 197
(1)
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pp. 135-148
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1962 ◽
Vol 10
(3)
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pp. 454-468
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2010 ◽
Vol 216
(9)
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pp. 2718-2727
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1931 ◽
Vol 27
(4)
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pp. 546-552
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