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    • The Jacobian conjecture: Approximate roots and intersection numbers 

      A. Guccione, Jorge; Guccione, Juan José; Horruitiner, Rodrigo; Valqui, Christian (Pontificia Universidad Católica del Perú, 2019-09-10)
      We compute the intersection number of a Jacobian pair in two different ways following Yansong Xu, but using the language of [5]. We obtain nearly the same formulas, but with an inequality instead of an equality.