• products of prime ideals of OL, provides one of the richest parts of algebraic number theory. The splitting of prime ideals in Galois extensions is sometimes...
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  • Ideal theory Ideal (order theory) Ideal norm Splitting of prime ideals in Galois extensions Ideal sheaf Some authors call the zero and unit ideals of...
    38 KB (6,198 words) - 10:42, 15 May 2025
  • field can be split (factored) in a Galois extension. See Covering map and Splitting of prime ideals in Galois extensions for more details. Closed geodesics...
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  • Chebotarev density theorem (category Theorems in algebraic number theory)
    Chebotarev density theorem in algebraic number theory describes statistically the splitting of primes in a given Galois extension K of the field Q {\displaystyle...
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  • Finite field (redirect from Galois field)
    In mathematics, a finite field or Galois field (so-named in honor of Évariste Galois) is a field that contains a finite number of elements. As with any...
    45 KB (7,535 words) - 18:07, 22 April 2025
  • {\mathcal {O}}_{K}} of a quadratic field K {\displaystyle K} . In line with general theory of splitting of prime ideals in Galois extensions, this may be p...
    12 KB (1,306 words) - 09:53, 29 September 2024
  • separable extension K′ of K, a Galois closure L of K′ is a type of splitting field, and also a Galois extension of K containing K′ that is minimal, in an obvious...
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  • Splitting of prime ideals in Galois extensions. The same idea in the proof shows that if L / K {\displaystyle L/K} is a purely inseparable extension (need...
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  • Heegner number Langlands program Different ideal Dedekind domain Splitting of prime ideals in Galois extensions Decomposition group Inertia group Frobenius...
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  • Thumbnail for Gaussian integer
    Gaussian integer (redirect from Gauss prime)
    integer Splitting of prime ideals in Galois extensions describes the structure of prime ideals in the Gaussian integers Table of Gaussian integer factorizations...
    35 KB (4,835 words) - 07:01, 5 May 2025
  • Thumbnail for Ramification (mathematics)
    Sea: Foundations of algebraic geometry (PDF). Retrieved 5 June 2019. "Splitting and ramification in number fields and Galois extensions". PlanetMath....
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  • Q by the roots of 2x5 − 32x + 1, which has Galois group S5. Splitting of prime ideals in Galois extensions Narkiewicz (1990) p.416 Narkiewicz (1990) p...
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  • Thumbnail for Field (mathematics)
    differential Galois theory, a variant of Galois theory dealing with linear differential equations. Galois theory studies algebraic extensions of a field by...
    87 KB (10,305 words) - 18:58, 29 May 2025
  • fundamental theorem of Galois theory. Field extensions can be generalized to ring extensions which consist of a ring and one of its subrings. A closer...
    20 KB (3,323 words) - 19:47, 26 December 2024
  • Thumbnail for Emmy Noether
    Emmy Noether (category Academic staff of the University of Göttingen)
    the extension field in which a polynomial can be factored into its roots is known as the splitting field of the polynomial. The Galois group of a polynomial...
    134 KB (15,266 words) - 04:37, 29 May 2025
  • structure of the set of extensions is known better when L/K is Galois. Let (K, v) be a valued field and let L be a finite Galois extension of K. Let Sv...
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  • reciprocity laws as a statement that the Artin symbol from ideals (or ideles) to elements of a Galois group is trivial on a certain subgroup. Several more recent...
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  • is a splitting field which is a separable extension of K of degree equal to the index of A, and this splitting field is isomorphic to a subfield of A. As...
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  • exploited in Grothendieck's Galois theory). It can be shown that for separable extensions the radical is always {0}; therefore the Galois theory case...
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  • describing the solution of the linear least squares problem Normal extensions (or quasi-Galois), field extensions, splitting fields for a set of polynomials over...
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  • (up to reordering) as a product of primes. Galois A Galois extension is a finite field extension L/K such that one of the following equivalent conditions...
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  • intersections of, respectively, all algebraic ideals, all differential ideals, and all radical differential ideals that contain it. The algebraic ideal generated...
    61 KB (7,852 words) - 11:11, 29 April 2025
  • Algebraic closure (category Field extensions)
    field extension. In general, the absolute Galois group of K is the Galois group of Ksep over K. Algebraically closed field Algebraic extension Puiseux...
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  • provide fresh information on the splitting of prime ideals in a Galois extension; a common way to explain the objective of a non-abelian class field theory...
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  • distinct. The inverse Galois problem: is every finite group the Galois group of a Galois extension of the rationals? Isomorphism problem of Coxeter groups Are...
    195 KB (20,026 words) - 13:12, 7 May 2025
  • Thumbnail for Quaternion group
    Like many other finite groups, it can be realized as the Galois group of a certain field of algebraic numbers. The quaternion group Q8 has the same order...
    26 KB (3,716 words) - 00:17, 2 March 2025
  • Cyclotomic field (category Articles lacking in-text citations from September 2012)
    {\displaystyle \mathbb {Q} (\zeta _{n})} is a Galois extension of Q {\displaystyle \mathbb {Q} } . The Galois group Gal ⁡ ( Q ( ζ n ) / Q ) {\displaystyle...
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  • Noether determined the minimal set of conditions required that a primary ideal be representable as a power of prime ideals, as Richard Dedekind had done for...
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  • In mathematics, the norm residue isomorphism theorem is a long-sought result relating Milnor K-theory and Galois cohomology. The result has a relatively...
    17 KB (2,302 words) - 02:40, 17 April 2025
  • function Formally real field Real closed field Applications Galois theory Galois group Inverse Galois problem Kummer theory General Module (mathematics) Bimodule...
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