The characteristic-three classification conjecture for simple transposed Poisson algebras

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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 n∈Nn\in\mathbb{N} and q∈W(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 n∈Nn\in\mathbb{N} and q∈W(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.

References

Primary source

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

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