eng
Zehrt, Thomas
Zehrt-LiebendÃ¶rfer, Christine
The growth function of Coxeter garlands in $\mathbb{H}^4$
http://doc.rero.ch/record/28757/files/zeh_gfc.pdf
The growth function W(t) of a Coxeter group W relative to a Coxeter generating set is always a rational function. We prove by an explicit construction that there are infinitely many cocompact Coxeter groups W in hyperbolic 4-space with the following property. All the roots of the denominator of W(t) are on the unit circle except exactly two pairs of real roots.
2012-03-14T09:28:10Z
http://doc.rero.ch/record/28757