A Characterization of Derivations and Automorphisms on Some Simple Algebras

Abstract

In the present paper, we study simple algebras, which do not belong to the well-known classes of algebras (associative algebras, alternative algebras, Lie algebras, Jordan algebras, etc.). The simple finite-dimensional algebras over a field of characteristic 0 without finite basis of identities, constructed by Kislitsin, are such algebras. In the present paper, we consider two such algebras: the simple seven-dimensional anticommutative algebra and the seven-dimensional central simple commutative algebra . We prove that every local derivation of these algebras and is a derivation, and every 2-local derivation of these algebras and is also a derivation. We also prove that every local automorphism of these algebras and is an automorphism, and every 2-local automorphism of these algebras and is also an automorphism.