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arXiv 1709.00486math.AC
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二维正则局部环的Noether交

Noetherian intersections of regular local rings of dimension two

William Heinzer, Bruce Olberding

摘要:

设$D$是2维正则局部环,$Q(D)$表示$D$的2维正则局部覆盖环的二次树.我们研究诺特环的交叉环在$Q(D)$。要做到这一点,我们描述的desingularization的投影模型在$D$代数方面的饱和度的完整的理想和秩序理论上的二次树$Q(D)$。

英文摘要:

Let $D$ be a 2-dimensional regular local ring and let $Q(D)$ denote the quadratic tree of 2-dimensional regular local overrings of $D$. We examine the Noetherian rings that are intersections of rings in $Q(D)$. To do so, we describe the desingularization of projective models over $D$ both algebraically in terms of the saturation of complete ideals and order-theoretically in terms of the quadratic tree $Q(D)$.

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