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Stream: learning: questions

Topic: composing coends

Daniel Teixeira (Sep 26 2024 at 19:02):

If L is the coend of F, a morphism L->x is described by maps F(y,y)->x dinatural in y. This is nice. But if I have a sequence L->L->x, for a morphism L->L described by another dinatural transformation, is there any explicit description for the composite? Or even in the case where we have z->L->x, with the 2nd morphism described by a known dinatural transformation.

Daniel Teixeira (Sep 26 2024 at 19:11):

(deleted)