Kähler package conjecture for corrected perverse cohomology
Kähler package conjecture for corrected perverse cohomology
Let be a projective conifold degeneration, and let be the corrected perverse object constructed from nearby and vanishing cycles. A mixed-Hodge-module refinement of means a refinement compatible with the projective geometry of the degeneration. Kähler package conjecture. If admits such a refinement, then the hypercohomology groups
should satisfy a Kähler-type package analogous to that of intersection cohomology, including duality, Lefschetz-type isomorphisms, and Hodge–Riemann bilinear relations. This extends the established Hodge-theoretic package for intersection cohomology to the corrected perverse object; the required mixed-Hodge-module realization and the resulting duality, Lefschetz, and Hodge–Riemann statements remain conjectural in this setting.
Sources & referencesView supporting material
Primary source
Abdul Rahman, “Perverse Extensions and Limiting Mixed Hodge Structures for Conifold Degenerations”, arXiv:2604.04355 (2026).
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