Proposition. Let be an adjoint pseudomonoid. The endomaps, , form a duoidal category with composition and convolution.

Example. In the monoidal bicategory of profunctors, any monoidal category induces a duoidal structure on its endoprofunctors, given by composition and Day convolution.

endocells-of-a-map-pseudomonoid-are-duoidal

Tags: Map pseudomonoid, duoidal category, compositional dependencies with duoidals.

This results appears in Section 9.1 of Commutativity (Garner, Lopez Franco, 2015), which in turn cites Proposition 4 of Monoidal Bicategories and Hopf Algebroids (Day, Street, 1997).