1 Retraction Note
The Editors-in-Chief have retracted this article because it shows significant overlap with articles by different authors that were simultaneously under consideration at different journals [1, 2]. The article also shows evidence of authorship manipulation and peer review manipulation. Additionally, the identity of the corresponding author could not be verified. The Technische Universität Berlin have confirmed that Hugo Roncalver has not been affiliated with their institution. The authors have not responded to correspondence regarding this retraction.
References
Zhang, J., Lu, J., Du, W., Chu, Y., Luo, H.: Hopf bifurcation analysis and its preliminary control in a Hasting–Powell food chain model with two different delays. J. Nonlinear Sci. Appl. 10(8), 4181–4196 (2017)
Lai, M., Sun, J., Li, W.: RETRACTED ARTICLE: Stability and direction for a class of Schrödingerean difference equations with delay. Adv. Differ. Equ. 2017, 87 (2017). https://doi.org/10.1186/s13662-017-1132-3
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Wang, J., Roncalver, H. Retraction Note: New applications of Schrödinger type inequalities to the existence and uniqueness of Schrödingerean equilibrium. J Inequal Appl 2021, 187 (2021). https://doi.org/10.1186/s13660-021-02724-6
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DOI: https://doi.org/10.1186/s13660-021-02724-6