Learning seminar on Finite Relational Structures

Peter Sinclair, University of Waterloo

"Auxiliary Results on Homotopy Groups and Digraphs"

Abstract: Two weeks ago, we defined a digraph $F^k(X,x_0)$, whose vertices were a particular set of homomorphisms, and a group $\sigma_k(X,x_0)$, whose elements were connected components of $F^k(X,x_0)$. This week, we will begin looking at these structures in more detail.