×

Kan extensions and lax idempotent pseudomonads. (English) Zbl 1254.18005

Authors’ abstract: We show that colax idempotent pseudomonads and their algebras can be presented in terms of right Kan extensions. Dually, lax idempotent pseudomonads and their algebras can be presented in terms of left Kan extensions. We also show that a distributive law of a colax idempotent pseudomonad over a lax idempotent pseudomonad has a presentation in terms of Kan extensions.

MSC:

18D05 Double categories, \(2\)-categories, bicategories and generalizations (MSC2010)
18C15 Monads (= standard construction, triple or triad), algebras for monads, homology and derived functors for monads
18A40 Adjoint functors (universal constructions, reflective subcategories, Kan extensions, etc.)