***********************************
                * Princeton Discrete Math Seminar *
                ***********************************

Speaker: Rose McCarty (Princeton and IAS)

Thursday 6th October, 3:00 in Fine Hall 224.

Title: Forbidding a vertex-minor

Geelen conjectures that every class of graphs with a forbidden vertex-minor 
has a very simple structure; this conjecture is analogous to the Graph Minors 
Structure Theorem of Robertson and Seymour, but for vertex-minors instead of 
graph minors. We discuss progress towards proving this conjecture, focusing 
on the overall approach. This project is ongoing joint work with Jim Geelen 
and Paul Wollan.


		----------------------------------


Anyone wishing to be added to or removed from the mailing list should
contact Paul Seymour (pds@math.princeton.edu)