Abstract:
We show that any local $\frac12$-derivation on solvable Leibniz algebras with model or abelian nilradicals, whose dimensions of complementary spaces are maximal, is a $\frac12$-derivation. We show that solvable Leibniz algebras with abelian nilradicals, which have $1$-dimensional complementary spaces are $\frac12$-derivations. Moreover, a similar problem concerning $2$-local $\frac12$-derivations of such algebras is investigated.
Keywords and phrases:Leibniz algebras, solvable algebras, nilpotent algebras, $\frac12$-derivation, local $\frac12$-derivation, $2$-local $\frac12$-derivation.