The Andre-Oort conjecture for the moduli space of Abelian Surfaces
  We provide an unconditional proof of the Andr\'e-Oort conjecture for the coarse moduli space $\mathcal{A}_{2,1}$ of principally polarized Abelian surfaces, following the strategy outlined by Pila-Zannier. 
Jonathan Pila, Jacob Tsimerman
math.NT