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math.AG2024
Cohomological stabilization, perverse filtrations, and refined BPS invariants for del Pezzo surfaces
Weite Pi, Junliang Shen, Fei Si +1
We prove an asymptotic product formula for the refined BPS invariants associated with a local del Pezzo surface. Our formula governs the cohomological stabilization of the perverse…
math.AG2024
Asymptotic Behaviors of Moduli of One-dimensional Sheaves on Surfaces
Fei Si, Feinuo Zhang
In this paper, we study the asymptotic behaviors of the Betti numbers and Picard numbers of the moduli space of one-dimensional sheaves supported in a curve class on…
math.AG2024
Chow ring of moduli spaces of quasi-polarised K3 surfaces in lower genus
Fei Si
In the paper, we show the Chow ring of moduli spaces of quasi-polarised K3 surfaces in lower genus () is tautological.