Positive solutions of second-order linear difference equation with variable delays
Keyword(s):
2007 ◽
Vol 53
(7)
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pp. 1129-1139
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1981 ◽
Vol 90
(3)
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pp. 385-387
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2009 ◽
Vol 215
(8)
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pp. 2855-2857
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Keyword(s):
2017 ◽
Vol 41
(2)
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pp. 167-178
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