Generalized derivations of $\omega$-Lie algebras

Abstract

This article explores the structure theory of compatible generalized derivations of finite-dimensional $\omega$-Lie algebras over a field $\mathbb{K}$. We prove that any compatible quasiderivation of an $\omega$-Lie algebra can be embedded as a compatible derivation into a larger $\omega$-Lie algebra, refining the general result established by Leger and Luks in 2000 for finite-dimensional nonassociative algebras. We also provide an approach to explicitly compute (compatible) generalized derivations and quasiderivations for all $3$-dimensional non-Lie complex $\omega$-Lie algebras.

To appear in J. Algebra Appl. (2026) 2650206 (16 pages)