Sur le produit de vari'et'es localement factorielles ou Q-factorielles
Sur le produit de vari'et'es localement factorielles ou Q-factorielles
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关于变量和位置因素或 Q 因素的产品
DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
Olivier Serman
中科院分区:
文献类型:
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作者:
Samuel Boissière;Ofer Gabber;Olivier Serman
We show that the factorial and Q-factorial loci of algebraic varieties defined over an algebraically closed field are open, that products of locally factorial varieties are still locally factorial, and that this property remains true for Q-factorial varieties if the ground field is not the algebraic closure of a finite field.