Modularity lifting beyond the Taylor–Wiles method
Modularity lifting beyond the Taylor–Wiles method
复制标题
超越泰勒·怀尔斯方法的模块化提升
DOI:
10.1007/s00222-017-0749-x
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发表时间:
2018
影响因子:
3.1
通讯作者:
Geraghty, David
中科院分区:
文献类型:
--
作者:
Calegari, Frank;Geraghty, David
We prove new modularity lifting theorems forp-adic Galois representations in situations where the methods of Wiles and Taylor–Wiles do not apply. Previous generalizations of these methods have been restricted to situations where the automorphic forms in question contribute to a single degree of cohomology. In practice, this imposes several restrictions—one must be in a Shimura variety setting and the automorphic forms must be of regular weight at infinity. In this paper, we essentially show how to remove these restrictions. Our most general result is a modularity lifting theorem which, on the automorphic side, applies to automorphic forms on the groupover a general number field; it is contingent on a conjecture which, in particular, predicts the existence of Galois representations associated to torsion classes in the cohomology of the associated locally symmetric space. We show that if this conjecture holds, then our main theorem implies the following: ifEis an elliptic curve over an arbitrary number field, thenEis potentially automorphic and satisfies the Sato–Tate conjecture. In addition, we also prove some unconditional results. For example, in the setting ofover, we identify certain minimal global deformation rings with the Hecke algebras acting on spaces ofp-adic Katz modular forms of weight 1. Such algebras may well containp-torsion. Moreover, we also completely solve the problem (forpodd) of determining the multiplicity of an irreducible modular representationin the Jacobian, whereNis the minimal level such thatarises in weight two.
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