Ann Kiefer

activity

20122021

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

1 citations · 1 across the 7 of their papers we have counts for

collaborators

Showing 2014Show all

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math.GR2014

Dirichlet-Ford domains and Double Dirichlet domains

Eric Jespers, Stanley Orlando Juriaans, Ann Kiefer +2

We continue investigations started by Lakeland on Fuchsian and Kleinian groups which have a Dirichlet fundamental domain that also is a Ford domain in the upper half-space model of…

math.GR2014

Describing units of integral group rings up to commensurability

Florian Eisele, Ann Kiefer, Inneke Van Gelder

We restrict the type of $2 \times 2$ -matrices which can occur as simple components in the Wedderburn decomposition of the rational group algebra of a finite group. This results in…