Boardman-Vogt tensor product and wreath product of operadic categories
We introduce the wreath product of operadic categories and show that it produces a monoidal structure on the category OpCat of strict operadic categories. We relate the wreath product to the well known Boardman-Vogt tensor product of operads by interpreting the category of symmetric set-valued colored unital operads as a reflexive subcategory of OpCat. Our main result is that the reflection is a strong monoidal functor. In particular, the Boardman-Vogt tensor product of two colored operads in Set is isomorphic to an operad that is induced by the wreath product of suitable operadic categories.
math.AT↗