Mathlib Map

Theorems · Definition · group theory

groupCohomology.toCocycles

{k G : Type u} →
  [inst : CommRing k] →
    [inst_1 : Group G] →
      (A : Rep.{u, u, u} k G) → (i j : ℕ) → (groupCohomology.inhomogeneousCochains A).X i ⟶ groupCohomology.cocycles A j

This is the map from i-cochains to j-cocycles induced by the differential in the complex of inhomogeneous cochains.

Defined in
Mathlib.RepresentationTheory.Homological.GroupCohomology.Basic
Cited by
6 results in Mathlib
Foundations
Depth 115 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRingGroup

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