摘要翻译:
研究了无穷类最小次Cohen-Macaulay簇的算术秩和上同调维数。在这些例子中,我们一方面发现了无限多的集合论完全交集,另一方面发现了算术秩任意大于余维数的例子。
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英文标题:
《On the arithmetical rank of a special class of minimal varieties》
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作者:
Margherita Barile
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最新提交年份:
2008
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分类信息:
一级分类:Mathematics 数学
二级分类:Commutative Algebra 交换代数
分类描述:Commutative rings, modules, ideals, homological algebra, computational aspects, invariant theory, connections to algebraic geometry and combinatorics
交换环,模,理想,同调代数,计算方面,不变理论,与代数几何和组合学的联系
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一级分类:Mathematics 数学
二级分类:Algebraic Geometry 代数几何
分类描述:Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology
代数簇,叠,束,格式,模空间,复几何,量子上同调
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英文摘要:
We study the arithmetical ranks and the cohomological dimensions of an infinite class of Cohen-Macaulay varieties of minimal degree. Among these we find, on the one hand, infinitely many set-theoretic complete intersections, on the other hand examples where the arithmetical rank is arbitrarily greater than the codimension.
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PDF链接:
https://arxiv.org/pdf/0710.2483