2 papers
math.RT2025
Block pro-fusion systems for profinite groups and blocks with infinite dihedral defect groups
Florian Eisele, Ricardo J. Franquiz Flores, John W. MacQuarrie
We introduce block pro-fusion systems for blocks of profinite groups, prove a profinite version of Puig's structure theorem for nilpotent blocks, and use it to show that there is o…
math.RA2024
Units in group rings and blocks of Klein four or dihedral defect
Florian Eisele, Leo Margolis
We obtain restrictions on units of even order in the integral group ring of a finite group by studying their actions on the reductions modulo of lattices over…