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Solvable absolute Galois groups are metabelian

机译:可解的绝对Galois群是变态的

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We show that solvable absolute Galois groups have an abelian normal subgroup such that the quotient is the direct product of two finite cyclic and a torsion-free procyclic group. In particular, solvable absolute Galois groups are metabelian. Moreover, any field with solvable absolute Galois group G admits a non-trivial henselian valuation, unless each Sylow-subgroup of G is either procyclic or isomorphic to Z_2 * Z/2Z. A complete classification of solvable absolute Galois groups (up to isomorphism) is given.
机译:我们表明,可解的绝对Galois基团具有abelian正规子群,因此商是两个有限循环和无扭转的前环基团的直接乘积。特别是,可解的绝对Galois基团是metabelian。此外,任何具有可解绝对Galois组G的字段均会接受非平凡的henselian估值,除非G的每个Sylow子组是顺环的或与Z_2 * Z / 2Z同构的。给出了可解的绝对Galois基团(直至同构)的完整分类。

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