Cannon-Thurston maps for Coxeter groups with signature $(n-1,1)$

Abstract

For a Coxeter group $W$ we have an associating bi-linear form $B$ on suitable real vector space. We assume that $B$ has the signature $(n-1,1)$ and all the bi-linear form associating rank $n^{\prime }(\ge 3)$ Coxeter subgroups generated by subsets of $S$ has the signature $(n^{\prime },0)$ or $(n^{\prime }-1,1)$. Under these assumptions, we see that there exists the Cannon-Thurston map for $W$, that is, the $W$-equivariant continuous surjection from the Gromov boundary of $W$ to the limit set of $W$. To see this we construct an isometric action of $W$ on an ellipsoid with the Hilbert metric. As a consequence, we see that the limit set of $W$ coincides with the set of accumulation points of roots of $W$.

24 pages

References in corpus (4)

• Asymptotical behaviour of roots of infinite Coxeter groups
• On Cannon-Thurston maps for relatively hyperbolic groups
• The Boundary at Infinity of a rough CAT(0) space
• Cannon-Thurston maps for Coxeter groups including affine special subgroups

Cited by in corpus (1)

• Cannon-Thurston maps for Coxeter groups including affine special subgroups