Homological projective duality for quadrics

Homological projective duality for quadrics
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二次曲面的同调射影对偶性

DOI:
10.1090/jag/767
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发表时间:
2021
影响因子:
1.8
通讯作者:
Perry, Alexander
Perry, Alexander
中科院分区:
数学1区
文献类型:
--
作者:
Kuznetsov, Alexander;Perry, Alexander

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证明了在特征不等于2的代数闭域上,光滑二次超曲面的同调射影对偶以及光滑二次超曲面上分支的射影空间的对偶是两种运算的组合:一种是二次超曲面与其经典射影对偶交换,另一种是二次超曲面与其双重覆盖沿其分支的交换.
We show that over an algebraically closed field of characteristic not equal to 2, homological projective duality for smooth quadric hypersurfaces and for double covers of projective spaces branched over smooth quadric hypersurfaces is a combination of two operations: one interchanges a quadric hypersurface with its classical projective dual and the other interchanges a quadric hypersurface with the double cover branched along it.
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