The derived category of a non generic cubic fourfold containing a plane

The derived category of a non generic cubic fourfold containing a plane
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包含平面的非泛立方四重的派生范畴

DOI:
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发表时间:
2016
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影响因子:
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通讯作者:
Riccardo Moschetti
Riccardo Moschetti
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作者:
Riccardo Moschetti

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我们描述了一个Azumaya代数上的决议的双重覆盖的奇异性的一个平面分歧沿着节点六次相关的非通用的三次四重包含一个平面。我们表明,这样的决议,扭曲的Azumaya代数的派生范畴,是等价的库兹涅佐夫分量的三次四重的派生范畴的半正交分解。
We describe an Azumaya algebra on the resolution of singularities of the double cover of a plane ramified along a nodal sextic associated to a non generic cubic fourfold containing a plane. We show that the derived category of such a resolution, twisted by the Azumaya algebra, is equivalent to the Kuznetsov component in the semiorthogonal decomposition of the derived category of the cubic fourfold.
DOI: 10.1112/s0010437x16008137
发表时间: 2015-05
影响因子: 1.8
作者:
D. Huybrechts
通讯作者: D. Huybrechts