Convexity and freezing sets in digital topology Laurence Boxer | Show more Laurence Boxer https://orcid.org/0000-0001-7905-9643 United States Niagara University Department of Computer and Information Sciences Submitted: 2020-08-12 | Accepted: 2020-12-04 | Published: 2021-04-01 DOI: https://doi.org/10.4995/agt.2021.14185