%0 Journal Article %T Computing girth and cogirth in perturbed graphic matroids %A Jim Geelen %A Rohan Kapadia %J Computer Science %D 2015 %I arXiv %X We give polynomial-time randomized algorithms for computing the girth and the cogirth of binary matroids that are low-rank perturbations of graphic matroids. %U http://arxiv.org/abs/1504.07647v2