LECTURES ON DEFORMATIONS OF GALOIS REPRESENTATIONS
LECTURES ON DEFORMATIONS OF GALOIS REPRESENTATIONS
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伽罗瓦表示变形讲座
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
M. Kisin
中科院分区:
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作者:
M. Kisin
(1.1) Throughout these notes p will be a rational prime and F a finite field of characteristic p. We will denote by G be a pro-finite group and VF a finite dimensional F-vector space equipped with a continuous action of G. We write n = dimFVF. For the first three lectures G will usually be an arbitrary pro-finite group sometimes satisfying a certain finiteness condition. Later we will consider the case where G is the Galois group of a number field or of a finite extension of Qp. (1.1.1) Let ARW (F) denote the category of finite local, Artinian W (F)-algebras with residue field F. If A is in ARW (F) then by a deformation of VF to A we mean a finite free A-module VA equipped with a continuous action of G, and a G-equivariant isomorphism VA ⊗A F ∼ −→ VF. We define a functor DVF on ARW (F) by setting