Tchebotarev density theorem


Let L/K be any finite Galois extensionMathworldPlanetmath of number fieldsMathworldPlanetmath with Galois groupMathworldPlanetmath G. For any conjugacy classMathworldPlanetmathPlanetmath CβŠ‚G, the subset of prime ideals π”­βŠ‚K which are unramified in L and satisfy the property

[L/K,𝔓]∈C⁒for any primeΒ β’π”“βŠ‚L⁒containing ⁒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.

Title Tchebotarev density theorem
Canonical name TchebotarevDensityTheorem
Date of creation 2013-03-22 12:46:49
Last modified on 2013-03-22 12:46:49
Owner djao (24)
Last modified by djao (24)
Numerical id 5
Author djao (24)
Entry type Theorem
Classification msc 11R37
Classification msc 11R44
Classification msc 11R45
Synonym Chebotarev density theorem