A support theorem for the Hitchin fibration: the case of

A support theorem for the Hitchin fibration: the case of
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希钦纤维化的支持定理:情况

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发表时间:
2016
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通讯作者:
M. A. Cataldo
M. A. Cataldo
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作者:
M. A. Cataldo

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我们证明了$D$-扭曲$SL_n$ Hitchin纤维化的直像复形是由它对椭圆轨迹的限制决定的,其中谱曲线是积分的。对于$GL_n$的类似结果是由于P. - H. Chaudouard和G.劳蒙沿着这条路,我们证明了相对Prym群方案的Tate模是可极化的,并且我们还证明了一些辅助弱交换纤维化的$delta$-正则性结果。
We prove that the direct image complex for the $D$-twisted $SL_n$ Hitchin fibration is determined by its restriction to the elliptic locus, where the spectral curves are integral. The analogous result for $GL_n$ is due to P.-H. Chaudouard and G. Laumon. Along the way, we prove that the Tate module of the relative Prym group scheme is polarizable, and we also prove $delta$-regularity results for some auxiliary weak abelian fibrations.
光谱覆盖的 Prym 品种
DOI: 10.2140/gt.2012.16.1609
发表时间: 2012
影响因子: 2
作者:
Hausel T
通讯作者: Hausel T