The Editors-in-Chief have retracted this article [1] because it overlaps significantly with a number of previously published articles from different authors [2-4] and one article by different authors that was simultaneously under consideration with another journal [5]. The article also showed evidence of peer review manipulation. Additionally, the identity of the corresponding author could not be verified: Roskilde University have confirmed that Beatriz Ychussie has not been affiliated with their institution. The authors have not responded to any correspondence with regards to this retraction.

中文翻译：

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缩回注意：通过定点索引，Schrödinger算子方程的a级集的尖锐几何特性

总编辑撤回了这篇文章[1]，因为它与许多不同作者的先前发表的文章[2-4]和不同作者的一篇文章有​​明显的重叠，同时又与另一本期刊一起考虑[5]。文章还显示了同行评审操纵的证据。此外，无法验证通讯作者的身份：罗斯基勒大学（Roskilde University）已确认Beat Beat Ychussie与他们的机构无关。作者未就此撤稿对任何信件做出回应。