Lecture

The Lemma of the Five: Abelian Groups

In course

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Description

This lecture concludes the characterization of split exact sequences in terms of direct sums. It then presents one of the most fundamental results in group theory: the famous Lemma of the Five. The slides cover topics such as commutative diagrams, isomorphisms, injectivity, and bijectivity in the context of exact sequences.

Instructor

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Official source

https://mediaspace.epfl.ch/media/0_467dvv57

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Ontological neighbourhood

Mathematics

Algebra: Abstract algebra, Representation theory

Topology: Algebraic topology

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