Ale\v s Dr\'apal
A-loops close to code loops are groups

Comment.Math.Univ.Carolinae 41,2 (2000) 245-249.

Abstract:Let $Q$ be a diassociative A-loop which is centrally nilpotent of class 2 and which is not a group. Then the factor over the centre cannot be an elementary abelian 2-group.

Keywords: A-loop, central nilpotency, Osborn problem
AMS Subject Classification: 20N05