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2 votes

Adjunctions with respect to profunctors

I remember I tried to work with this definition for a while when I still believed in the notion of relative category. Under some coherence assumptions, your notion is related to the classical notion o …
Ivan Di Liberti's user avatar
4 votes
Accepted

Profunctors as a Kleisli bicategory

This beautiful story take place in $\mathsf{Cat}$, the bicategory of locally small categories. There, the construction of small presheaves induces a pseudomonad whose pseudoalgebrabas are cocomplete c …
Ivan Di Liberti's user avatar
8 votes
Accepted

The Kan construction, profunctors, and Kan extensions

I will try to answer the second question. Prop 1. Let ${\bf C} \xleftarrow{i} {\bf A} \xrightarrow{f} {\bf B}$ be a span where $i$ is dense and fully faithful. Moreover $\text{lan}_if$ is pointwi …
Ivan Di Liberti's user avatar