On Maps, Machines and Roaches
Dror Bar-Natan, Berkeley, October 1999
Based on an M.Sc. thesis by Dori Eldar See http://www.math.toronto.edu/~drorbn/Talks/Machines and http://www.math.toronto.edu/~drorbn/People/Eldar/thesis/
See http://www.math.toronto.edu/~drorbn/Talks/Machines and http://www.math.toronto.edu/~drorbn/People/Eldar/thesis/