A proof of a duality result of Fukaya and Kato
A proof of a duality result of Fukaya and Kato
复制标题
深谷和加藤对偶性结果的证明
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
R. Sharifi
中科院分区:
文献类型:
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作者:
R. Sharifi
We suppose that Λ is a (p-)adic ring for a prime p, in the sense of [FK, Section 1.4]. That is, letting J denote the radical of Λ, one has that Λ/J for any positive integer n is finite of order a power of p and Λ is isomorphic to the inverse limit of the Λ/J. We give Λ the resulting profinite topology. Recall that, in particular, Λ/J is isomorphic to a product of matrix algebras over finite fields of characteristic p. Let F be a finite extension of Q` for some prime number `, and let G denote its absolute Galois group. Suppose that T is a projective finitely generated (left) Λ-module with a commuting action of G. We denote the complex of continuous G-cochains with values in T by C(G, T ). The resulting object in the derived category is denoted RΓ(G, T ), and its ith cohomology group is denoted H (G, T ). These are all naturally Λ-modules. Let Λ◦ denote the opposite ring of Λ. Set T ∗ = HomΛ(T,Λ). Then T ∗ is naturally a Λ◦[G]-module, using the standard G-action considering Λ as a trivial G-module and right multiplication on T ∗ by elements of Λ to give the Λ◦-action. Moreover, the Pontryagin dual