O. Jenkinson et M. Pollicott, Computing the dimension of dynamically defined sets: E-2 and bounded continued fractions, ERGOD TH DY, 21, 2001, pp. 1429-1445
We present a powerful approach to computing the Hausdorff dimension of cert
ain conformally self-similar sets. We illustrate this method for the dimens
ion dim(H) (E-2) Of the set E-2, consisting of those real numbers whose con
tinued fraction expansions contain only the digits 1 or 2. A very striking
feature of this method is that the successive approximations converge to di
m(H) (E-2) at a super-exponential rate.