Lie nilpotent group algebras and upper Lie codimension subgroups

In this article we introduce the series of the upper Lie codimension subgroups of a group algebra KG of a group G over a field K. By means of this series we give a contribution to the conjecture clL(KG) = cl L(KG) when G belongs to particular classes of finite p-groups. Copyright © Taylor & Francis Group, LLC