The characteristic-three classification conjecture for simple transposed Poisson algebras

Let F\mathbb{F} be an algebraically closed field of characteristic three. A simple finite-dimensional non-trivial transposed Poisson algebra over F\mathbb{F} has an associated Lie algebra, and let W(1;n)\mathcal{W}(1;n) denote the Zassenhaus algebra; for nNn\in\mathbb{N} and qW(1;n)q\in\mathcal{W}(1;n), let Wn(q)\mathcal{W}_n(q) denote the corresponding transposed Poisson algebra.

Characteristic-three classification conjecture. Every simple finite-dimensional non-trivial transposed Poisson algebra over F\mathbb{F} is isomorphic to Wn(q)\mathcal{W}_n(q) for some nNn\in\mathbb{N} and qW(1;n)q\in\mathcal{W}(1;n). Equivalently, the associated Lie algebra of every such algebra should be a Zassenhaus algebra W(1;n)\mathcal{W}(1;n).

The preceding classification applies in characteristic p>3p>3; this conjecture asks whether the same description remains valid in characteristic three. Its resolution would complete the classification in the remaining prime characteristic considered here.

Sources & referencesView supporting material

Primary source

Amir Fernández Ouaridi, “On simple transposed Poisson algebras”, arXiv:2604.26115 (2026).

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