The LLV decomposition of hyper-Kaehler cohomology

Mark Green, Yoon-Joo Kim, Radu Laza +1

Looijenga--Lunts and Verbitsky showed that the cohomology of a compact hyper-Kähler manifold $X$ admits a natural action by the Lie algebra $\mathfrak{so}(4,b_2(X)-2)$, generaliz…