10 citations · 19 across the 19 of their papers we have counts for
1 paper · 1 filter
Yasumichi Matsuzawa, Hiromichi Ohno, Akito Suzuki +2
We prove that all hypergroups of order four are commutative and that there exists a non-comutative hypergroup of order five. These facts imply that the minimum order of non-commuta…