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arXiv 1801.09243math.AG
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志村品种的基序交叉复合体

Motivic Intersection Complex of Certain Shimura varieties

Vaibhav Vaish

摘要:

使用一个版本的重量保守性,我们证明,对于某些志村品种(包括所有志村三倍,大多数志村四倍和西格尔六倍)的motivic交叉复杂由于Wildeshaus的建设相比,在S意义上的motivic重量截断。莫瑞尔特别是它被定义为一个唯一的同构,并满足由于Wildeshaus的中间扩展的内在特征。

英文摘要:

Using a version of weight conservativity we demonstrate that for certain Shimura varieties (including all Shimura three-folds, most Shimura four-folds and the Siegel sixfold) the construction of the motivic intersection complex due to Wildeshaus compares with a motivic weight truncation in the sense of S. Morel. In particular it is defined up to a unique isomorphism, and satisfies the intrinsic characterization for an intermediate extension due to Wildeshaus.

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