TOPOLOGICAL CLASSIFICATION OF SKEW PRODUCTS FOR QUIVER C*-ALGEBRAS

I will present a topological version of the combinatorial skew product for graphs, show how this designs a natural coaction on the C*-algebra associated to a topological quiver, and show natural criteria for identifying an abstract quiver as a skew product. With classical intuition at hand, I shall introduce a class of coactions that one can “see” in a noncommutative framework.