Associate Professor of Mathematics Sally Cockburn gave a talk, "Permutations and Geometric Realizations of Complete Bipartite Graphs," at the Discrete Mathematics Seminar at the University of Victoria on March 8. The presentation was based on her current sabbatical leave research, which uses the combinatorial structure of inversions in permutations to classify the straight-line drawings of complete bipartite graphs. The topic is an offshoot of joint work with Associate Professor of Mathematics Debra Boutin.