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arXiv · 1203.4696

Dehn function and asymptotic cones of Abels' group

Yves Cornulier·Romain Tessera
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Abstract

We prove that Abels' group over an arbitrary nondiscrete locally compact 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.

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Yves Cornulier, Romain Tessera. 2013-09-22. Dehn function and asymptotic cones of Abels' group. https://doi.org/10.1112/jtopol%2Fjtt019

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