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单词 TchebotarevDensityTheorem
释义

Tchebotarev density theorem


Let L/K be any finite Galois extensionMathworldPlanetmath of number fieldsMathworldPlanetmath with Galois groupMathworldPlanetmath G. For any conjugacy classMathworldPlanetmathPlanetmath CG, the subset of prime ideals 𝔭K which are unramified in L and satisfy the property

[L/K,𝔓]Cfor any prime 𝔓Lcontaining 𝔭

has analytic density |C||G|, where [L/K,𝔓] denotes the Artin symbolMathworldPlanetmath at 𝔓.

Note that the conjugacy class of [L/K,𝔓] is independent of the choice of prime 𝔓 lying over 𝔭, since any two such choices of primes are related by a Galois automorphismMathworldPlanetmathPlanetmathPlanetmath and their corresponding Artin symbols are conjugatePlanetmathPlanetmath by this same automorphism.

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更新时间:2025/5/4 5:26:26