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Optimal existence conditions for second order periodic solutions of delay differential equations with upper and lower solutions in the reverse order
Jiang, Daqing, Zuo, Wenjie, O'Regan, Donal, Agarwal, Ravi P.Volume:
81
Language:
english
Journal:
International Journal of Computer Mathematics
DOI:
10.1080/00207160310001597215
Date:
June, 2004
File:
PDF, 135 KB
english, 2004