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New posts in group-cohomology
Cohomology ring of $H^*(A_5;\mathbb Z_2)$?
abstract-algebra
group-theory
algebraic-topology
group-cohomology
What do higher cohomologies mean concretely (in various cohomology theories)?
homology-cohomology
group-cohomology
Proving Schur-Zassenhaus Theorem, with added assumption that $G/H$ is cyclic
abstract-algebra
group-theory
cyclic-groups
group-cohomology
What exactly is a trivial module?
modules
homological-algebra
group-cohomology
Acyclic vs Exact
abstract-algebra
homology-cohomology
group-cohomology
Group cohomology versus deRham cohomology with twisted coefficients
differential-geometry
homology-cohomology
group-cohomology
Group cohomology intuition
intuition
group-cohomology
Interpretations of the first cohomology group
group-theory
group-cohomology
Why group cohomology and not group homology?
soft-question
homology-cohomology
homological-algebra
group-cohomology
Which groups act freely on $S^n$?
algebraic-topology
geometric-topology
group-cohomology
Group cohomology of dihedral groups
reference-request
group-cohomology
dihedral-groups
spectral-sequences
Interpretation of vanishing of cohomology groups
lie-algebras
homology-cohomology
group-cohomology
galois-cohomology
hochschild-cohomology
Why is the cohomology of a $K(G,1)$ group cohomology?
algebraic-topology
group-cohomology
classifying-spaces
eilenberg-maclane-spaces
Torsion-free virtually-Z is Z
group-theory
homology-cohomology
group-cohomology
Projective profinite groups
group-theory
big-list
group-cohomology
big-picture
galois-cohomology
What does the group ring $\mathbb{Z}[G]$ of a finite group know about $G$?
finite-groups
representation-theory
group-cohomology
group-rings
What is the intuition between 1-cocycles (group cohomology)?
intuition
examples-counterexamples
group-cohomology
Is there a characterization of groups with the property $\forall N\unlhd G,\:\exists H\leq G\text{ s.t. }H\cong G/N$?
combinatorics
group-theory
finite-groups
group-cohomology
p-groups
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