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Retraction Note: Landesman-Lazer type condition for second-order differential equations at resonance with impulsive effects

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The original article was published in Advances in Difference Equations 2014 2014:235

This article [1] has been retracted by Professor Ravi P Agarwal, Editor-in-Chief of Advances in Difference Equations.

Following publication of this article, it was brought to the attention of the editorial and publishing staff that this article has substantial overlap with an article by Jin Li, Jianlin Luo, and Zaihong Wang [2], published in November 2014 in Mathematical Modelling and Analysis.

This is a violation of publication ethics which, in accordance with the Committee on Publication Ethics guidelines, warrants a retraction of the article and a notice to this effect to be published in the journal.

References

  1. 1.

    Li, J, Zheng, M: Landesman-Lazer type condition for second-order differential equations at resonance with impulsive effects. Adv. Differ. Equ. 2014, 235 (2014)

  2. 2.

    Li, J, Luo, J, Wang, Z: Periodic solutions of second order impulsive differential equations at resonance via variational approach. Math. Model. Anal. 19(5), 664-675 (2014)

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Author information

Correspondence to Jin Li.

Additional information

The online version of the original article can be found under doi:10.1186/1687-1847-2014-235.

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Open Access This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

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