Tree conjecture on graphs and more colourings in polytopes

Description:  We will talk about some chromatic invariants in graphs and polytopes, and see what are the consequences of a nice description of the kernel of these chromatic maps in important problems like the tree conjecture. We will see that the most general version of this problem is in the realm of generalised permutahedra, as we will see that graphs and other interesting combinatorial objects can be embedded there. Date:  2018-06-29 Start Time:   11:30 Speaker:  Raul Penaguião (Univ. Zurich, Switzerland) Institution:  Universitat Zurich Place:  Room 5.4, Department of Mathematics, U.C. Research Groups: -Algebra and Combinatorics See more:   <Main>