English

Generalized derivations of Complex $\omega$-Lie Superalgebras

Rings and Algebras 2025-05-30 v1

Abstract

~Let (g, [,], ω)(g,~[-,-],~\omega) be a finite-dimensional complex ω\omega-Lie superalgebra. This paper explores the algbaraic structures of generalized derivation superalgebra GDer(g){\rm GDer}(g), compatatible generalized derivations algebra GDerω(g){\rm GDer}^{\omega}(g), and their subvarieties such as quasiderivation superalgebra QDer(g){\rm QDer}(g)(QDerω(g){\rm QDer}^{\omega}(g)), centroid Cent(g){\rm Cent}(g) (Centω(g){\rm Cent}^{\omega}(g)) and quasicentroid QCent(g){\rm QCent}(g) (QCentω(g){\rm QCent}^{\omega}(g)). We prove that GDerω(g)=QDerω(g)+QCentω(g){\rm GDer}^{\omega}(g) = {\rm QDer}^{\omega}(g) + {\rm QCent}^{\omega}(g). We also study the embedding question of compatible quasiderivations of ω\omega-Lie superalgebras, demonstrating that QDerω(g){\rm QDer}^{\omega}(g) can be embedded as derivations in a larger ω\omega-Lie superalgebra g˘\breve g and furthermore, we obtain a semidirect sum decomposition: Derω(g˘)=φ(QDerω(g))ZDer(g˘){\rm Der}^{\omega}(\breve{g})=\varphi({\rm QDer}^{\omega}(g))\oplus {\rm ZDer}(\breve{g}), when the annihilator of gg is zero. In particular, for the 3-dimensional complex ω\omega-Lie superalgebra HH, we explicitly calculate GDer(H){\rm GDer}(H), GDerω(H){\rm GDer}^{\omega}(H), QDer(H){\rm QDer}(H) and QDerω(H){\rm QDer}^{\omega}(H), and derive the Jordan standard forms of generic elements in these varieties.

Keywords

Cite

@article{arxiv.2505.22966,
  title  = {Generalized derivations of Complex $\omega$-Lie Superalgebras},
  author = {Jia Zhou},
  journal= {arXiv preprint arXiv:2505.22966},
  year   = {2025}
}