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arXiv 0902.0770math.AGmath.AT
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实非交换混合Hodge结构的形式与分裂

Formality and splitting of real non-abelian mixed Hodge structures

J. P. Pridham

摘要:

定义并构造了复射影簇的实图式同伦型上的混合Hodge结构,给出了它们的同伦群和前代数基本群上的混合Hodge结构.我们还表明,这些分裂的张量与环R[x]配备了霍奇过滤的权力(x-i),给出新的结果,即使是单连通品种。这样,就可以从局部系统的上同调群中恢复混合Hodge结构,并在阿基米德位置恢复单值作用。随着基点的变化,这些都成为混合霍奇结构的实际变化。

英文摘要:

We define and construct mixed Hodge structures on real schematic homotopy types of complex projective varieties, giving mixed Hodge structures on their homotopy groups and pro-algebraic fundamental groups. We also show that these split on tensoring with the ring R[x] equipped with the Hodge filtration given by powers of (x-i), giving new results even for simply connected varieties. Thus the mixed Hodge structures can be recovered from cohomology groups of local systems, together with the monodromy action at the Archimedean place. As the basepoint varies, these all become real variations of mixed Hodge structure.

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