On the geometry of bifurcation currents for quadratic rational maps
  We describe the behaviour at infinity of the bifurcation current in the moduli space of quadratic rational maps. To this purpose, we extend it to some closed, positive (1, 1)-current on a two-dimensional complex projective space and then compute the Lelong numbers and the self-intersection of the extended current. 
Fran\c{c}ois Berteloot (IMT), Thomas Gauthier (LAMFA, IMS)
math.DS