Abstract
This is a proposal for a postdoctoral fellowship for Julia Böttcher, to be held at the Institute of Mathematics and Statistics of the University of São Paulo (IME/USP), from 1 April 2010 to 31 March 2012 (2 years). This researcher is already a postdoctoral fellow at this department, with a fellowship from the European Comission, under the EUBRANEX programme; this fellowship is for six mo…