Oscillation criteria in neutral equations of -order with variable coefficients.
Georgiou, D.A., Qian, C. (1991)
International Journal of Mathematics and Mathematical Sciences
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Georgiou, D.A., Qian, C. (1991)
International Journal of Mathematics and Mathematical Sciences
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Wang, Zhicheng, Stavroulakis, Ioannis P., Qian, Xiangzheng (2002)
Applied Mathematics E-Notes [electronic only]
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Hou, Chengmin, Cheng, Sui Sun (2009)
Abstract and Applied Analysis
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Ireneusz Kubiaczyk, Samir H. Saker (2002)
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Han, Zhenlai, Li, Tongxing, Sun, Shurong, Chen, Weisong (2010)
Advances in Difference Equations [electronic only]
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Kikina, L.K., Stavroulakis, I.P. (2010)
International Journal of Differential Equations
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J. Džurina, D. Hudáková (2009)
Mathematica Bohemica
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We establish some new oscillation criteria for the second order neutral delay differential equation The obtained results supplement those of Dzurina and Stavroulakis, Sun and Meng, Xu and Meng, Baculíková and Lacková. We also make a slight improvement of one assumption in the paper of Xu and Meng.