The perverse filtration comparison conjecture for compactified Jacobians
Let be the plane curve under consideration, let be its compactified Jacobian, and let be the perverse filtration on . Let be the moduli space of rigidified maps, and let be its local Artinian coordinate ring with residue field , graded by the induced -action. Write for its maximal ideal. The perverse filtration comparison conjecture. For every there is a canonical isomorphism
These isomorphisms are compatible with the ring structures on both sides. This predicts a common degeneration of the cohomology ring and , but no resolution is supplied in the source.
References
Primary source
Alexei Oblomkov and Zhiwei Yun, “The cohomology ring of certain compactified Jacobians”, arXiv:1710.05391 (2017).
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