Lax Functors, Cospans, and the Center Construction
arXiv:2109.03122
Abstract
The center construction is not (classically) functorial. In this note, we specialize a universal construction of Jacob Lurie to the category of rings and upgrade the classical center to a lax functor. In particular, we find lax functors to the Morita category and the category of cospans.
V3: Final, title change (to be more descriptive)