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Oscillation criterion for first-order delay differential equations with sign-changing coefficients

open access: yesElectronic Journal of Differential Equations, 2017
We establish conditions so that all solutions to a first-order linear delay differential equation become oscillatory. The coefficients of this equation are allowed to have negative and positive values, which is an expansion of the results in the ...
Hongwu Wu, Churong Chen, Rongkun Zhuang
doaj  

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