Dehn functions and finiteness properties of subgroups of perturbed   right-angled Artin groups
  We introduce the class of perturbed right-angled Artin groups. These are constructed by gluing Bieri double groups into standard right-angled Artin groups. As a first application of this construction we obtain families of CAT(0) groups containing finitely presented subgroups which are not of type $\mathrm{FP}_3$, and have exponential, or polynomial Dehn functions of prescribed degree. 
Noel Brady, Dan Guralnik, Sang Rae Lee
math.GR math.GT