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math.AG2026
Minimal reduction type in classical cases
Bin Wang, Xueqing Wen, Yaoxiong Wen
We prove Yun's minimal reduction conjecture for all classical groups. More precisely, for any topologically nilpotent regular semisimple element , we show that the associated mi…
math.AG2025
On the generic fibers and true base of parabolic -Hitchin systems
Bin Wang, Xueqing Wen, Yaoxiong Wen
In this paper, we confirm a physical conjecture regarding the parabolic -Hitchin system, showing that Hitchin map factors through a finite cover of the Hitchin ba…
math.AG2024
Picard Groups of Spectral Varieties and Moduli of Higgs Sheaves
Xiaoyu Su, Bin Wang
We study moduli spaces of Higgs sheaves valued in line bundles and the associated Hitchin maps on surfaces. We first work out Picard groups of generic (very general) spectral varie…