3 papers
math.GR2020
3 questions on cut groups
Andreas Bächle
This short note collects three open questions on cut groups (a class of groups generalizing rational groups).
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…
math.RA2018
An application of blocks to torsion units in group rings
Andreas Bächle, Leo Margolis
We use the theory of blocks of cyclic defect to prove that under a certain condition on the principal p-block of a finite group G the normalized unit group of the integral group ri…