In a recent article, the coordinate ring of the nodal cubic was given the structure of a quantum homogeneous space. Here the corresponding coalgebra Galois extension is expressed in terms of quantum groups at roots of unity, and is shown to be cleft. Furthermore, the minimal quotient extensions are determined.

中文翻译：

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统一根的节点立方和量子组

在最近的一篇文章中，节点立方的配位环被赋予了量子均匀空间的结构。在这里，相应的余格数Galois扩展用单位根处的量子基团表示，并显示为裂隙。此外，确定最小商扩展。