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Poincaré polynomials of moduli spaces of Higgs bundles and character varieties (no punctures)
Inventiones mathematicae ( IF 3.1 ) Pub Date : 2020-01-29 , DOI: 10.1007/s00222-020-00950-1
Anton Mellit

Using our earlier results on polynomiality properties of plethystic logarithms of generating series of certain type, we show that Schiffmann’s formulas for various counts of Higgs bundles over finite fields can be reduced to much simpler formulas conjectured by Mozgovoy. In particular, our result implies the conjecture of Hausel and Rodriguez-Villegas on the Poincaré polynomials of twisted character varieties and the conjecture of Hausel and Thaddeus on independence of E -polynomials on the degree.

中文翻译:

希格斯丛和字符变体的模空间的庞加莱多项式(无穿孔)

使用我们先前关于生成特定类型序列的 plethystic 对数的多项式性质的结果,我们表明,有限域上各种希格斯丛计数的希夫曼公式可以简化为 Mozgovoy 推测的更简单的公式。特别是,我们的结果暗示了 Hausel 和 Rodriguez-Villegas 对扭曲特征变体的 Poincaré 多项式的猜想以及 Hausel 和 Thaddeus 对 E 多项式在次数上的独立性的猜想。
更新日期:2020-01-29
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