Equivalences of CategoriesExplores examples of natural transformations, equivalence of categories, and adjunction with specific instances involving Un.
Group CohomologyCovers the concept of group cohomology, focusing on chain complexes, cochain complexes, cup products, and group rings.
Categorical Context of G-objectsDelves into the categorical framework for group actions and the correspondence between G-actions on c and functors from BG to C.
Adjunctions and Push OutsCovers adjunctions, push outs, colimits, and discrete fibers in coverings, emphasizing group actions and symmetries.
