Group extensions ofp-adic and adelic linear groups
Group extensions ofp-adic and adelic linear groups
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DOI:
10.1007/bf02698923
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发表时间:
1968-12
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影响因子:
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通讯作者:
C. Moore
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文献类型:
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作者:
C. Moore
If G is a group and A an abelian group such that G operates on A as a group of automorphisms (ie, A is a G-module), then one has defined cohomology groups H^ G, A), n^ 9 [17]-The group H^ G, A) represents the crossed homomorphisms of G into A modulo the principal ones, or simply Horn (G, A) if G operates trivially on A [17]. If A is a G-module, an extension of G by A is an exact sequence