Let
G be a discrete quasiconformal group preserving
B3 whose limit set Λ(
G) is purely conical and all of ∂
B3. Let
Ĝ be a non-elementary normal subgroup of
G: we show that there exists a set $¥mathcal{A}$ of full measure in Λ(
G) so that $¥mathcal{A}$, regarded as a subset of Λ (
Ĝ), has "fat horospherical" dynamics relative to
Ĝ. As an application we will bound from below the exponent of convergence of
Ĝ in terms of the Hausdorff dimension of $¥mathcal{A}$.
抄録全体を表示