Published online by Cambridge University Press: 01 October 2008
Let N be an integer with N≥2 and let X be a compact subset of ℝd. If is a list of contracting similarities Si:X→X, then we will write for the self-similar set associated with , and we will write M for the family of all lists satisfying the strong separation condition. In this paper we show that the maps (1)and (2)are continuous; here denotes the Hausdorff dimension, ℋs denotes the s-dimensional Hausdorff measure and 𝒮s denotes the s-dimensional spherical Hausdorff measure. In fact, we prove a more general continuity result which, amongst other things, implies that the maps in (1) and (2) are continuous.