Oscillation criteria for forced second o
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Zhaowen Zheng; Xiao Wang; Hongmei Han
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Article
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2009
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Elsevier Science
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English
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By using Riccati transformation, new oscillation criteria are given for forced second order differential equations with mixed nonlinearities, which improve and generalize results in the literature. An (ฮฑ + 1)-degree functional is involved for oscillation, which is widely used in variational theories