“Group Rings Which Are Direct Products of Division Rings”
Prof. Falko Lorenz
ABSTRACT: Arithmetical investigations led me to ask: For which finite groups G is the group ring of G over a field K isomorphic to a direct product of division rings? There is a complete group-theoretical answer to this question, having been worked out in collaboration with B. Huppert. But ultimately it leads to a delicate number-theoretical problem of elementary character.
Time : 15.40
Place: Mathematics Seminar Room SA141
Tea will be served before the seminar.