Antoine Julien, NTNU: Tiling spaces, groupoids and K-theory
Antoine Julien (NTNU) will give a talk with title: Tiling spaces, groupoids and K-theory
In this talk, I will describe how spaces, groupoids and C*-algebras can be associated with aperiodic tilings. In some cases, it is possible to describe the structure of the groupoid combinatorially in terms of augmented Bratteli diagrams. (joint work with Jean Savinien) Time permitting, I will expose a strategy for computing the K-theory of the tiling algebra in terms of the K-theory of AF-algebras (work in progress).