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    • Geometric perspective on piecewise polynomiality of double Hurwitz numbers 

      Cavalieri, Renzo; Marcus, Steffen (Cambridge University Press, 2014)
      We describe double Hurwitz numbers as intersection numbers on the moduli space of curves M̅g,n. Using a result on the polynomiality of intersection numbers of psi classes with the Double Ramification Cycle, our formula ...