1. Department of Mathematics, Jiangxi Normal University, Nanchang 330022, China2. Department of Mathematics and Computer Science, Rutgers University, Newark, NJ 07102, USA
Abstract:
We construct free Hom-semigroups when its unary operation is multiplicative and is an involution. Our method of construction is by bracketed words. As a consequence, we obtain free Hom-associative algebras generated by a set under the same conditions for the unary operation.