Homological Isoperimetric Inequalities for Kernels of Free Extensions of Type $FP_2$
We define homological area-radius pairs with surface diagrams. Using these, we adapt a proof of Gersten and Short \cite{gersten2002} to obtain a homological isoperimetric inequality for subgroups of type $FP_2$ which appear as kernels of free extensions.
math.GR↗