endofunctor Endofunctor 2002-02-24 16:48:03 2002-06-06 14:10:57 Definition \usepackage{amssymb} \usepackage{amsmath} \usepackage{amsfonts} Given a category $\mathcal{C}$, an \emph{endofunctor} is a functor $T : \mathcal{C}\to\mathcal{C}$.