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math.AG2019
On divisorial (i) classes
Olivia Dumitrescu, Nathan Priddis
In this paper we introduce and study divisorial (i) classes for the blow up of projective space in several points for i=-1,0 and 1. We generalize Noether's inequality, and we prove…
math.AG2019
Mirror curve of orbifold Hurwitz numbers
Olivia Dumitrescu, Motohico Mulase
Edge-contraction operations form an effective tool in various graph enumeration problems, such as counting Grothendieck's dessins d'enfants and simple and double Hurwitz numbers. T…