Frobenius element

E790516

The Frobenius element is a distinguished element in a Galois group associated to an unramified prime, encoding how that prime splits in a field extension and playing a central role in algebraic number theory and arithmetic geometry.

All labels observed (8)

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf arithmetic object ⓘ
group-theoretic element ⓘ
actsOn algebraic integers modulo a prime ⓘ
residue field ⓘ
appearsIn Cebotarev-type equidistribution results ⓘ
Dirichlet density statements for primes ⓘ
proofs of prime splitting criteria ⓘ
associatedWith Galois group ⓘ
finite Galois extension of number fields ⓘ
prime ideal ⓘ
unramified prime ⓘ
characterizedBy x ↦ x^N on residue field, where N is residue field size ⓘ
context finite extension of global fields ⓘ
unramified places of function fields ⓘ
unramified places of number fields ⓘ
definedFor unramified prime ideals ⓘ
encodes decomposition of primes ⓘ
inertness of primes ⓘ
residue field automorphism ⓘ
splitting behavior of primes in extensions ⓘ
field algebraic number theory ⓘ
arithmetic geometry ⓘ
generalization Frobenius automorphism ⓘ
hasProperty conjugacy class depends only on the prime ⓘ
order divides size of residue field minus one in abelian case ⓘ
well-defined up to conjugacy in the Galois group ⓘ
liesIn decomposition group ⓘ
namedAfter Ferdinand Georg Frobenius ⓘ
notDefinedFor ramified primes without modification ⓘ
projectsTo generator of Galois group of residue field extension ⓘ
relatedTo Frobenius endomorphism ⓘ
Weil group element ⓘ
arithmetic Frobenius ⓘ
linked to: Frobenius element

geometric Frobenius ⓘ
linked to: Frobenius element
usedIn Artin L-functions ⓘ
Chebotarev density theorem ⓘ
Galois representations ⓘ
Langlands program ⓘ
Sato–Tate type distributions ⓘ
Weil conjectures ⓘ
class field theory ⓘ
global class field theory reciprocity map ⓘ
local L-factors ⓘ
étale cohomology ⓘ
usedToDefine Artin symbol ⓘ
linked to: Frobenius element

Frobenius conjugacy class ⓘ
local factors of zeta functions of varieties over finite fields ⓘ

How these facts were elicited

Referenced by (15)

Full triples — surface form annotated when it differs from this entity's canonical label.

Chebotarev density theorem → usesConcept → Frobenius element ⓘ
Koblitz curves → relatedTo → Frobenius endomorphism ⓘ
linked to: Frobenius element
Weil group → hasElementType → Frobenius elements ⓘ
linked to: Frobenius element
global class field theory → usesConcept → Frobenius automorphism ⓘ
linked to: Frobenius element
Artin reciprocity law → usesConcept → Frobenius automorphism ⓘ
linked to: Frobenius element
Artin reciprocity law → involves → Artin symbol ⓘ
linked to: Frobenius element
Frobenius element → relatedTo → geometric Frobenius ⓘ
linked to: Frobenius element
Frobenius element → relatedTo → arithmetic Frobenius ⓘ
linked to: Frobenius element
Frobenius element → usedToDefine → Artin symbol ⓘ
linked to: Frobenius element
Frobenius conjugacy class → associatedTo → Frobenius element ⓘ
Frobenius conjugacy class → arisesFrom → Frobenius automorphism at a prime ⓘ
linked to: Frobenius element
Frobenius conjugacy class → relatedTo → Artin symbol ⓘ
linked to: Frobenius element
Frobenius endomorphism → generalizedBy → geometric Frobenius ⓘ
linked to: Frobenius element
Frobenius endomorphism → generalizedBy → arithmetic Frobenius ⓘ
linked to: Frobenius element
Weil–Deligne group → relatedTo → Frobenius element ⓘ