Show 15 5 10 15 20 50 100 250 Sort by year (new to old) Actions Save this search Download search results Subscribe to news feed Your filters: cql: keyword exact "Dual hypergroups" Add to list Journal Article A1 Hypergroup deformations of semigroups Kumar Vishvesh (UGent) , Kenneth A. Ross and Ajit Iqbal Singh (2019) SEMIGROUP FORUM. 99(1). p.169-195