Yoneda lemma

Related lectures (25)

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Explores divisibility and torsion in group theory, focusing on defining a functor that preserves divisibility.

Explores the topological Künneth Theorem, emphasizing commutativity and homotopy equivalence in chain complexes.

Explores the beautiful properties of the p-Sylow subgroups of a finite group.

Introduces the concept of homology groups and focuses on a lemma about free abelian groups.

Covers the cup product on cohomology, acyclic models, and the universal coefficient theorem.

Explores equivariant bijections between groups of automorphisms and the compatibility with group operations.

Introduces Lemma 1.14 for finite sets in Ab and discusses notations and properties of direct sums.

Explores group actions and equivariant morphisms in group theory.

Covers the concept of functors, assigning morphisms and dual spaces in different categories.