Limit Set Intersection Theorems for Kleinian Groups and a Conjecture of Susskind

Abstract

We continue here the investigation of the relationship between the intersection of a pair of subgroups of a Kleinian group, and in particular the limit set of that intersection, and the intersection of the limit sets of the subgroups. Of specific interest is the extent to which the intersection of the limit sets being non-empty implies that the intersection of the subgroups is non-trivial. We present examples to show that a conjecture of Susskind, stating that the intersection of the sets of conical limit points of subgroups $\Phi$ and $\Theta$ of a Kleinian group $\Gamma$ is contained in the limit set of $\Phi\cap \Theta$, is as sharp as can reasonably be expected. We further show that Susskind's conjecture holds most of the time.