https://dspace.mit.edu/entities/publication/ba22f457-4a42-4aa2-88ea-a8e928f4e724
The Burnside bicategory of groupoids
© 2016, Sociedad Matemática Mexicana. The category of groupoids admits a “stabilization” in which the morphisms are given by the group completion of the...
burnsidebicategorygroupoids