Tau functions, Prym-Tyurin classes and loci of degenerate differentials

Autor: Dmitry Korotkin, Adrien Sauvaget, Peter Zograf

Publikováno v: Mathematische Annalen
Mathematische Annalen, Springer Verlag, 2019, 375 (1-2), pp.213-246. ⟨10.1007/s00208-019-01836-1⟩

We study the rational Picard group of the projectivized moduli space of holomorphic n-differentials on complex genus g stable curves. We define (n - 1) natural classes in this Picard group that we call Prym-Tyurin classes. We express these classes as

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https://doi.org/10.1007/s00208-019-01836-1