(2013-09-30) Patel, Anand; Harris, Joseph D.; Chen, Dawei; Mazur, Barry
We explore the geometry of certain special subvarieties of spaces of branched covers which we call the Maroni and Casnati-Ekedahl loci. Our goal is to understand the divisor theory on compactifications of Hurwitz space, with the aim of providing upper bounds for slopes of sweeping families of d-gonal curves.
