$\mathbb{Z}$-graded identities of the Lie algebras $U_1$ in characteristic 2

Abstract

Let $K$ be any field of characteristic two and let $U_1$ and $W_1$ be the Lie algebras of the derivations of the algebra of Laurent polynomials $K[t,t^{-1}]$ and of the polynomial ring $K[t]$, respectively. The algebras $U_1$ and $W_1$ are equipped with natural $\mathbb{Z}$-gradings. In this paper, we provide bases for the graded identities of $U_1$ and $W_1$, and we prove that they do not admit any finite basis.

arXiv admin note: text overlap with arXiv:2107.10903

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• $\mathbb{Z}$-graded identities of the Lie algebras $U_1$ in characteristic 2