Now showing items 1-4 of 4

    • Approximation Constants for Closed Subschemes of Projective Varieties 

      Rollick, Nickolas (University of Waterloo, 2019-06-19)
      Diophantine approximation is a branch of number theory with a long history, going back at least to the work of Dirichlet and Liouville in the 1840s. The innocent-looking question of how well an arbitrary real algebraic ...
    • Hurwitz Trees and Tropical Geometry 

      Akeyr, Garnet Jonathan (University of Waterloo, 2016-01-21)
      The lifting problem in algebraic geometry asks when a finite group G acting on a curve defined over characteristic p > 0 lifts to characteristic 0. One object used in the study of this problem is the Hurwitz tree, which ...
    • The Liftable Mapping Class Group 

      Ghaswala, Tyrone (University of Waterloo, 2017-07-19)
      Broadly, this thesis lies at the interface of mapping class groups and covering spaces. The foundations of this area were laid down in the early 1970s by Birman and Hilden. Building on these foundations, there has been a ...
    • Rational approximations on smooth rational surfaces 

      Castañeda Santos, Diana Carolina (University of Waterloo, 2019-08-09)
      In this thesis, we study a conjecture made by D. McKinnon about rational approximations to rational points in algebraic varieties. The conjecture states that if a rational point P on a variety X lies on a rational curve, ...

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