%0 Journal Article %T Monads and distributive laws for Rota-Baxter and differential algebras %A Li Guo %A William Keigher %A Shilong Zhang %J Mathematics %D 2014 %I arXiv %X In recent years, algebraic studies of the differential calculus and integral calculus in the forms of differential algebra and Rota-Baxter algebra have been merged together to reflect the close relationship between the two calculi through the First Fundamental Theorem of Calculus. In this paper we study this relationship from a categorical point of view in the context of distributive laws which can be tracked back to the distributive law of multiplication over addition. The monad giving Rota-Baxter algebras and the comonad giving differential algebras are constructed. Then a mixed distributive law of the monad over the comonad is established. As a consequence, we obtain monads and comonads giving the composite structures of differential and Rota-Baxter algebras. %U http://arxiv.org/abs/1412.8058v2