Oscillation theorems for second-order no
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Wan-Tong Li; Peihao Zhao
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Article
📅
2004
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Elsevier Science
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English
⚖ 759 KB
Several oscillation criteria are given for the second-order damped nonlinear differential where a > 0 is any quotient of odd integers, a 6 C(R, (0,~)), p(t) and q(t) are allowed to change sign on [t0,c~), and f E CI(R,R) such that xf(x) > 0 for x :~ 0. Our results improve and extend some known osci