Group CohomologyCovers the concept of group cohomology, focusing on chain complexes, cochain complexes, cup products, and group rings.
Cohomology: Cross ProductExplores cohomology and the cross product, demonstrating its application in group actions like conjugation.
Steenrod SquaresCovers the concept of Steenrod Squares and their applications in stable cohomology operations.
Derived Functor ApproachCovers the derived functor approach to Čech cohomology, emphasizing the relationship between derived functors and sheaf theory.
Classification of ExtensionsExplores the classification of extensions in group theory, emphasizing split extensions and semi-direct products.