Tutte colloquium-Jim Geelen
Title: Well-quasi-ordering and connectivity
Speaker: | Jim Geelen |
Affiliation: | University of Waterloo |
Location: | MC 5501 |
Abstract: Connectivity systems provide an abstract framework for studying various connectivity notions on graphs, matroids, and other combinatorial structures. In joint work with Rutger Campbell, we prove a novel well-quasi-ordering result on certain connectivity systems which gives new excluded minor results in matroid theory and gives new proofs for several results in graph theory.