Recognizing Galois representations of K3 surfaces
Recognizing Galois representations of K3 surfaces
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识别 K3 曲面的伽罗瓦表示
DOI:
10.1007/s40993-019-0154-1
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发表时间:
2019
影响因子:
0.8
通讯作者:
Klevdal, Christian
中科院分区:
文献类型:
--
作者:
Klevdal, Christian
Under the assumption of the Hodge, Tate and Fontaine–Mazur conjectures we give a criterion for a compatible system of-adic representations of the absolute Galois group of a number field to be isomorphic to the second cohomology of a K3 surface. This is achieved by producing a motiveMrealizing the compatible system, using a local to global argument for quadratic forms to produce a K3 lattice in the Betti realization ofMand then applying surjectivity of the period map for K3 surfaces to obtain a complex K3 surface. Finally we use a very general descent argument to show that the complex K3 surface admits a model over a number field.
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B. Totaro
DOI:
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发表时间:
1997
期刊:
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