Lecture

Restriction Functors: Group Actions

In course

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Description

This lecture introduces the concept of restriction functors, which are a general type of functor between categories of G-objects, where G varies, defined with respect to a given group homomorphism. The instructor defines the notion of restriction functor and demonstrates that such a functor always has a left adjoint, specifically when the underlying category is the category of sets.

Instructor

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Official source

https://mediaspace.epfl.ch/media/0_hkh2eh7m

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Ontological neighbourhood

Mathematics

Algebra: Abstract algebra, Representation theory

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