Graphs and Matroids Seminar - Kevin Grace

Title: Dyadic matroids with spanning cliques

^{*Please note time and date change}

Abstract:

The Matroid Minors Project of Geelen, Gerards, and Whittle describes the structure of minor-closed classes of matroids representable over a fixed finite field. In order to use these resutls to study specific classes, it turns out to be important to study the matroids in the class containing spanning cliques. In this talk, I will describe the structure of dyadic matroids with spanning cliques. Other minor-closed classes may also be discussed if time permits. This is based on joint work with Ben Clark, James Oxley, and Stefan van Zwam.