20/06/21 08:09:07.81 W0WIc7wX.net
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・チェボタレフの密度定理：
URLﾘﾝｸ(en.wikipedia.org)
Chebotarev's density theorem
Chebotarev's density theorem in algebraic number theory describes statistically the splitting of primes in a given Galois extension K of the field {\displaystyle \mathbb {Q} of rational numbers. Generally speaking, a prime integer will factor into several ideal primes in the ring of algebraic integers of K. There are only finitely many patterns of splitting that may occur. Although the full description of the splitting of every prime p in a general Galois extension is a major unsolved problem, the Chebotarev density theorem says that the frequency of the occurrence of a given pattern, for all primes p less than a large integer N, tends to a certain limit as N goes to infinity. It was proved by Nikolai Chebotaryov in his thesis in 1922, published in (Tschebotareff 1926).
Contents
1 History and motivation
2 Relation with Dirichlet's theorem
3 Formulation
4 Statement
4.1 Effective Version
4.2 Infinite extensions
5 Important consequences
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