In mathematics, especially category theory, a monadic descent is roughly an idea to encode descent data using a monad.
Bénabou-Roubaud theorem The Bénabou-Roubaud theorem says that (roughly) given a bifibration satisfying the Beck–Chevalley condition for p, the category of descent data is canonically equivalent to the category of algebras of the monad induced by .
See also Beck's monadicity theorem
References
Further reading
-English translation of Bénabou&Roubaud(1970).