Thursday, November 30, 2017 3:30 pm
-
3:30 pm
EST (GMT -05:00)
Title: Fragility and circuit-hyperplane relaxation
| Speaker: | Jim Geelen |
| Affiliation: | University of Waterloo |
| Room : | MC 5479 |
Abstract:
I will briefly discuss the problem of trying to determine the excluded minors for the class of GF(5)-representable matroids, highlighting the roles of N-fragility and of circuit-hyperplane relaxations. Then I will show a direct relationship between N-fragile matroids and circuit-hyperplane relaxations; this is joint work with Florian Hoersch.