Mathematics – Group Theory
Scientific paper
2008-10-22
Mathematics
Group Theory
This is the version for publication. I have added some open questions in the final paragragh.
Scientific paper
We study the general theory of asymptotically CAT(0) groups, explaining why such a group has finitely many conjugacy classes of finite subgroups, is $F_\infty$ and has solvable word problem. We provide techniques to combine asymptotically CAT(0) groups via direct products, amalgams and HNN extensions. The universal cover of the Lie group $PSL(2,\mathbb{R})$ is shown to be an asymptotically CAT(0) metric space. Therefore, co-compact lattices in $\widetilde{PSL(2,\mathbb{R})}$ provide the first examples of asymptotically CAT(0) groups which are neither CAT(0) nor hyperbolic. Another source of examples is shown to be the class of relatively hyperbolic groups.
No associations
LandOfFree
Asymptotically CAT(0) Groups does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Asymptotically CAT(0) Groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymptotically CAT(0) Groups will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-416864