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Stream: event: Polynomial Functors @ Topos

Topic: Ross Street: "Polynomials as spans"


view this post on Zulip Tim Hosgood (Mar 16 2021 at 18:33):

Tuesday, 22:00 UTC

view this post on Zulip Tim Hosgood (Mar 16 2021 at 18:33):

Abstract:
Often it is useful to place fragments of category theory into the formal context of a bicategory, possibly with extra structure. Apart from isolating the essential concepts, the mechanisms can be applied to other bicategories. My progress on such a program for categorical polynomials will be explained.