%0 Journal Article %T An algorithm to detect full irreducibility by bounding the volume of periodic free factors %A Matt Clay %A Johanna Mangahas %A Alexandra Pettet %J Mathematics %D 2014 %I arXiv %X We provide an effective algorithm for determining whether an element of the outer automorphism group of a free group is fully irreducible. Our method produces a finite list which can be checked for periodic proper free factors. %U http://arxiv.org/abs/1402.7342v3