Jan 30 | Jakob Jonsson, KTH | On how to detect torsion in the homology of a chain complex |
Feb 13 | Petter Brändén, KTH | The Lee-Yang program and linear operators preserving stability |
Feb 20 | Axel Hultman, KTH | Points on tropical lines |
Feb 27 | Eric Emtander, SU | $d$-flag complexes and chordal hypergraphs |
Mar 26 | Various artists | Open problems seminar |
Apr 16 | Shmuel Friedland, Chicago/Berlin | Counting matchings in graphs with applications to the monomer-dimer models |
Apr 23 | Kathrin Vorwerk, KTH | Buildings and chamber graph connectivity |
May 5 | Niklas Eriksen, Göteborg | Permutations with prescribed descents, and fixed point colored permutations |
May 7 | Klas Markström, Umeå | Azuma-Hoeffding inequalities for matrix martingales and random expanders |