On open and closed hypercompositions
Christos G. Massouros, Gerasimos G. Massouros · AIP conference proceedings · 2018
This paper presents hypercompositions which either contain the two participating elements into their result (closed hypercomposition) or not (open hypercomposition). Moreover it introduces and studies the inaccessible subsets of a hypergroup, which are the concept antipodal of its semi-sub-hypergroups.