Marco Bruni                                  GGI Florence, October 2006
P=Po+ar
§a: Po>0, a<-1: phantom for r > rL; for  r < rL recollapsing flat and cyclic closed models (around Einstein fixed point)
§b: Po>0, -1<a<-1/3: similar to lower part of a
§c: Po<0, -1/3<a: phantom for r < rL,  de Sitter attractor, closed loitering models (close to Einstein fixed point).
a
b
c