Compatible system of ℓ-adic representations

In number theory, a compatible system of ℓ-adic representations is an abstraction of certain important families of ℓ-adic Galois representations, indexed by prime numbers ℓ, that have compatibility properties for almost all ℓ. == Examples == Prototypical examples include the cyclotomic character and the Tate module of an abelian variety.

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