Perturbations in inflationary cosmologies with smooth exit
  We give a comprehensive analysis of how scalar and tensor perturbations evolve in cosmologies with a smooth transition from power-law-like and de Sitter-like inflation to a radiation era. Analytic forms for the super-horizon and sub-horizon perturbations in the inflationary and radiation dominated eras are found. 
Daniel Tilley and Roy Maartens (University of Portsmouth)