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Forced oscillation of second-order nonlinear differential equations with positive and negative coefficients |
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| Authors: | A Özbekler JSW Wong A Zafer |
| Institution: | 1. Department of Mathematics, Atilim University 06836, Incek, Ankara, Turkey;2. Department of Mathematics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong;3. Department of Mathematics, Middle East Technical University 06531 Ankara, Turkey |
| Abstract: | In this paper we give new oscillation criteria for forced super- and sub-linear differential equations by means of nonprincipal solutions. |
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