“…Possible applications in the spectral theory of self-adjoint operators serve as an additional stimulus for a further investigation of singularly continuous measures. The authors in [11,12,15,23] provided some examples of the mutual singularity of multifractal Hausdor and packing measures for graph directed self-similar measures in R n with totally disconnected support, cookie-cutter measures [15], for some homogeneous Moran measures [11,12], in the spacial case where ν is the Lebesgue measure L n . Also, in [8,9], M. Das proved that the relative multifractal Hausdor and packing measures are mutually singular for the self-similar measures satisfying the signi cantly weaker open set condition.…”