Motivic hyper-Kähler resolution conjecture
Motivic hyper-Kähler resolution conjecture
Let be a smooth projective holomorphic symplectic variety endowed with a faithful symplectic action of a finite group . Let be the quotient, and suppose that has a crepant resolution . Let denote the category of complex Chow motives, and write and for the ordinary and orbifold Chow motives. Motivic hyper-Kähler resolution conjecture. There is an isomorphism of algebra objects in :
In particular, there is an isomorphism of graded -algebras
The conjecture was proposed in the cited work and is proven for Hilbert schemes of abelian varieties, generalized Kummer varieties, and Hilbert schemes of K3 surfaces, so it is solved in the stated generality by the cited results.
Sources & referencesView supporting material
Primary source
Lie Fu and Zhiyu Tian, “Motivic multiplicative McKay correspondence for surfaces”, arXiv:1709.01714 (2018).
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