Multifractal analysis of a class of self-affine Moran sets

In the paper, we investigate the fine multifractal spectrum of a class of self-affine Moran sets with fixed frequencies, and we prove that under certain separation conditions, the fine multifractal spectrum $H(\alpha)$ is given by the formula $$ H(\alpha)=\inf_{-\infty<t<+\infty} \{\alpha t+\beta(t)\}. $$