On free Gelfand--Dorfman--Novikov superalgebras and a PBW type theorem
Abstract
We construct a linear basis of a free GDN superalgebra over a field of characteristic ≠ 2. As applications, we prove a PBW theorem, that is, any GDN superalgebra can be embedded into its universal enveloping commutative associative differential superalgebra. An Engel theorem under some assumptions is given.
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