关于对数典范广义对的最小模型存在性的评论

IF 1 3区 数学 Q1 MATHEMATICS Mathematische Zeitschrift Pub Date : 2024-04-26 DOI:10.1007/s00209-024-03489-6
Nikolaos Tsakanikas, Lingyao Xie
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引用次数: 0

摘要

给定一个 NQC log canonical generalized pair ((X,B+M)),其底层综X不一定是 \(\mathbb {Q}\)-因子、我们证明,只要 \((X,B+M)\) 在较弱的意义上有一个最小模型,或者 \(K_X+B+M\) 不是伪有效的,那么我们就可以运行一个有缩放的充要分数的 \((K_X+B+M)\)-MMP 来终止。我们还证明了伪有效 NQC log 典范广义对的极小模型在各种附加假设下的存在,例如当边界包含一个充裕的除数时。
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Remarks on the existence of minimal models of log canonical generalized pairs

Given an NQC log canonical generalized pair \((X,B+M)\) whose underlying variety X is not necessarily \(\mathbb {Q}\)-factorial, we show that one may run a \((K_X+B+M)\)-MMP with scaling of an ample divisor which terminates, provided that \((X,B+M)\) has a minimal model in a weaker sense or that \(K_X+B+M\) is not pseudo-effective. We also prove the existence of minimal models of pseudo-effective NQC log canonical generalized pairs under various additional assumptions, for instance when the boundary contains an ample divisor.

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来源期刊
CiteScore
1.60
自引率
0.00%
发文量
236
审稿时长
3-6 weeks
期刊介绍: "Mathematische Zeitschrift" is devoted to pure and applied mathematics. Reviews, problems etc. will not be published.
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