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The cycle classes of divisorial Maroni loci

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 نشر من قبل Gerard van der Geer
 تاريخ النشر 2015
  مجال البحث
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We determine the cycle classes of effective divisors in the compactified Hurwitz spaces of curves of genus g with a linear system of degree d that extend the Maroni divisors on the open Hurwitz space. Our approach uses Chern classes associated to a global-to-local evaluation map of a vector bundle over a generic $P^1$-bundle over the Hurwitz space.



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