The following are the current most viewed articles on Wikipedia within Wikipedia's Adjoint functors category. Think of it as a What's Hot list for Adjoint functors. More info »

This is a beta release and so the figures may be a day or two out of date. We'd love to get your thoughts.

Rank	Topic	Wikipedia views
1	Monad (functional programming)	618
2	Apply	182
3	Monad (category theory)	138
4	Adjoint functors	127
5	Equivalence of categories	45
6	Kan extension	24
7	Morita equivalence	21
8	Isomorphism of categories	15
9	Kleisli category	12
10	Reflective subcategory	11
11	Beck's monadicity theorem	8
12	Strong monad	less than 5 views
13	Monoidal adjunction	less than 5 views

Parent categories

• Duality theories
• Functors

Encyclopedia