On the infimum attained by a reflected Lévy process

This paper considers a Lévy-driven queue (i.e., a Lévy process reflected at 0), and focuses on the
distribution of M(t), that is, the minimal value attained in an interval of length t (where it is assumed
that the queue is in stationarity at the beginning of the interval). The first contribution is an explicit
characterization of this distribution, in terms of Laplace transforms, for spectrally one-sided Lévy
processes (i.e., either only positive jumps or only negative jumps). The second contribution
concerns the asymptotics of ℙ(M(T u )>u) (for different classes of functions T u and u large); here we
have to distinguish between heavy-tailed and light-tailed scenarios.