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arXiv 0907.3427math.NT
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偶伽罗瓦表示与Fontaine-Mazur猜想

Even Galois Representations and the Fontaine-Mazur Conjecture

Frank Calegari

摘要:

我们证明了Fontaine-Mazur猜想的一些情况下,甚至伽罗瓦表示。特别是,我们证明,在温和的假设下,有没有不可约的二维普通甚至伽罗瓦表示$\Gal(\Qbar/\Q)$不同的Hodge-Tate权重。如果$K/\Q$是一个虚二次域,我们还证明(再次,在一定的假设下),$\Gal(\Qbar/K)$不承认不可约的二维普通伽罗瓦表示的非平行的重量。最后,我们证明了$\Gal(\Qbar/\Q)$的任何弱相容的二维不可约Galois表示族,直到twist,都是模的或有限的.

英文摘要:

We prove some cases of the Fontaine-Mazur conjecture for even Galois representations. In particular, we prove, under mild hypotheses, that there are no irreducible two-dimensional ordinary even Galois representations of $\Gal(\Qbar/\Q)$ with distinct Hodge-Tate weights. If $K/\Q$ is an imaginary quadratic field, we also prove (again, under certain hypotheses) that $\Gal(\Qbar/K)$ does not admit irreducible two-dimensional ordinary Galois representations of non-parallel weight. Finally, we prove that any weakly compatible family of two dimensional irreducible Galois representations of $\Gal(\Qbar/\Q)$ is, up to twist, either modular or finite.

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