Absolute-Valued Algebras with Left-Unit Satisfying \((x^2, x^2, x^r)=0\) Revised
摘要
Let \(\mathcal {A}\) be an absolute-valued algebra with left-unit. For such an algebra, the two identities \((x^2, x^2, x)=0,\) \((x^2, x^2, x^2)=0\) are equivalent and give, in dimension 8, four algebras. This allows to have a non-redundant list of all absolute-valued algebras with left unit satisfying \((x^2, x^2, x^r)=0\) .