CG

E883486

CG is the standard abbreviation for "Cohomologie Galoisienne," a foundational area of mathematics studying Galois cohomology and its applications in number theory and algebraic geometry.

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CG canonical 1

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Statements (45)

Predicate Object
instanceOf abbreviation
mathematical theory
appliesTo algebraic number fields
global fields
local fields
areaOf mathematics
developedBy Alexander Grothendieck
Jean-Pierre Serre
John Tate
Serge Lang
field Galois cohomology
frameworkFor cohomological interpretation of global class field theory
cohomological interpretation of local class field theory
hasConcept Hochschild–Serre spectral sequence
Poitou–Tate duality
Tate duality
cohomological dimension of fields
cohomology groups H^n(G,M)
cup product
inflation–restriction sequence
hasTool continuous cochains
derived functors
spectral sequences
influenced arithmetic geometry
motivic cohomology
étale cohomology
languageOf modern class field theory
relatedTo Brauer group
Hilbert 90
Kummer theory
Tate cohomology
Weil group
class field theory
étale cohomology
standsFor Cohomologie Galoisienne
studies Galois modules
cohomology of Galois groups
usedFor Shafarevich–Tate groups
classification of torsors
description of extensions of fields
local-global principles
obstruction theory in number theory
study of rational points on varieties
usedIn algebraic geometry
number theory

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