Department of Mathematics

Spikes form a well-known class of matroids that are important in the study of matroid connectivity. In this talk, I will describe spikes as well as a generalization of spikes developed a few years ago in joint work Nick Brettell, Rutger Campbell, Deborah Chun, and Geoff Whittle. I will also describe a further generalization recently developed in joint work with Nick Brettell.