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most citedA dichotomy for integral group rings via higher modular groups as amalgamated products

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math.GR2018★ 1 cited

A dichotomy for integral group rings via higher modular groups as amalgamated products

Andreas Bächle, Geoffrey Janssens, Eric Jespers +2

We show that , the unit group of the integral group ring , either satisfies Kazhdan's property (T) or is, up to commensurability, a non-triv…

math.GR2018

Abelianization and fixed point properties of units in integral group rings

Andreas Bächle, Geoffrey Janssens, Eric Jespers +2

Let be a finite group and the unit group of the integral group ring . We prove a unit theorem, namely a characterization of when $\ma…