Convergence semigroup categories Gary Richardson | H. Boustique | Piotr Mikusinski | Show more Gary Richardson United States University of Central Florida H. Boustique United States University of Central Florida Piotr Mikusinski United States University of Central Florida Submitted: 2013-09-24 | Accepted: 2013-09-24 | Published: 2013-09-24 DOI: https://doi.org/10.4995/agt.2010.1709