Massimo Campanino, Stefano Isola
On the invariance principle for 
non-uniformly expanding transformations of [0,1].
(20K, Plain-Tex)

ABSTRACT.  We consider a class of maps of [0,1] 
with an indifferent fixed point at 0 and
expanding everywhere else. Using a suitable uniformly 
expanding induced map we prove a functional central limit
theorem (invariance principle) with anomalous scaling n/\log n 
for the random stationary process generated by this dynamical system.