A non-abelian tensor product for Leibniz $n$-algebras is introduced as a generalization of the non-abelian tensor product for Leibniz algebras introduced by Kurdiani and Pirashvili. We use it to construct the universal central extension of a perfect Leibniz $n$-algebra.
"A non-abelian tensor product and universal central extension of Leibniz $n$-algebra." Bull. Belg. Math. Soc. Simon Stevin 11 (2) 259 - 270, June 2004. https://doi.org/10.36045/bbms/1086969316