ATCAT Seminar

Speaker: Frank Fu (Dalhousie University)

Title: A description of a reflective functor in the category of presheaves

Abstract: It is well-known that the subcategory of limit preserving functors in the category of presheaves is reflective. But what is the exact definition of the left adjoint? In this talk, we consider the subcategory of product preserving functors (a special case of limit preserving functors) and give a description of the left adjoint using some concepts from multi-sorted term algebra.

[This is a joint work with Peter Selinger, Kohei Kishida and Neil J. Ross]





Colloquium Room (Chase 319)

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Meeting ID: 818 7275 6284
Passcode: ATCAT2020