Uniform Hausdorff dimension result for the inverse images of stable L\'evy processes

We establish a uniform Hausdorff dimension result for the inverse image sets of real-valued strictly $\alpha$-stable L'evy processes with $1<\alpha \le 2$. This extends a theorem of Kaufman for Brownian motion. Our method is different from that of Kaufman and depends on covering principles for Markov processes.