Chebotarev Density Theorem
Frobenius conjugacy classes control how often unramified primes exhibit each splitting behavior in a finite Galois extension. Polynomial examples translate the density statement into factorization patterns modulo primes.
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Galois Extension · Number Field · prime ideal · residue degree of a local number-field extension
Where to read
Start here: Algebraic Number Theory (v3.08)
James S. Milne · Lecture notes · English · Free full text
Chapter 8 Global Fields, Chebotarev density theorem, Theorem 8.31 and Example 8.36
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Algebraic Number Theory & Class Field Theory in the library · Preparation and skip guidance