The adjoint algebras of an Abelian group are studied, and it is pointed out that all adjoint algebras of an Abelian group are automorphic. Meanwhile, an important property of generalized associative BCI-algebra is given.

• 研究了Abel群的伴随代数；指出了一个Abel群的所有伴随代数都是自同构的；同时给出了广义结合BCI-代数的一个重要性质.