Mathematics – Group Theory
Scientific paper
2012-03-21
Mathematics
Group Theory
28 pages, no figure
Scientific paper
We prove that Abels' group over an arbitrary local field has a quadratic Dehn function. As applications, we exhibit connected Lie groups and polycyclic groups whose asymptotic cones have uncountable abelian fundamental group. We also obtain, from the case of finite characteristic, uncountably many non-quasi-isometric finitely generated solvable groups, as well as peculiar examples of fundamental groups of asymptotic cones.
Cornulier Yves
Tessera Romain
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