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Polynomial functors

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If you have a question about this talk, please contact Sean Moss.

Polynomial functors are the categorical analog of polynomial functions on natural numbers: in other words just the functors constructed from `sum’ and `product’ operations that can be defined for any locally cartesian closed category. I will try to show that, like polynomial functions, this class of functors contains a range of useful examples and can be characterised in several ways. In particular I will look at the connection between algebras of polynomial endofunctors and datatypes representing well-founded trees.

This talk is part of the Junior Category Theory Seminar series.

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