Graph and Matroids Seminar - Matt Kroeker

Tuesday, July 19, 2022 2:30 pm - 2:30 pm EDT (GMT -04:00)

Title: High-Rank Matroids and Unavoidable Flats

Speaker: Matt Kroeker
Affiliation: University of Waterloo
Location: MC 5417

Abstract: We discuss a variety of questions and results pertaining to conjectures of Geelen from 2021 on the unavoidable flats in matroids of sufficiently high rank. We will also explore the differences in how such questions are posed for various classes of matroids, why such differences are necessary, and how they could potentially be reconciled. A result for the class of binary matroids and an outline of its proof will be discussed in detail. Joint work with Jim Geelen.