Work

Diagonalizable modular derivations on bigraded Poisson spaces and Koszul duality

Year: 2026
Type: preprint
Abstract: For two bigraded spaces $k^{m||n}$ and $k^{n\wedge m}$ equipped with appropriate quadratic Poisson structures, Koszul duality identifies the mixed Poisson differential calculi and, in the unimodular case, their Poisson cohomologies as Batalin--Vilkovisky algebras. In the current paper we prove that Koszul duality induces an isomorphism of Batalin--Vilkovisky algebras between their Poisson cohomologies when the modular derivation of one algebra is diagonalizable, including non-unimodular cases.
Language: English
Open Access status: green
OpenAlex ID: W7220957420
Cites: 1
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