Unavodiable collections of balls for isotropic Lévy processes

Ante Mimica, Zoran Vondraček

A collection $\{\bar{B}(x_n,r_n){\}}_{n\ge 1}$ of pairwise disjoint balls in the Euclidean space ${\mathbb{R}}^d$ is said to be avoidable with respect to a transient process $X$ if the process…