Mathematics

In this talk, I will begin with some background in nuclear C∗-algebras and amenable groups. Next, I will discuss the conditions which imply that a reduced crossed product C∗-algebra of a discrete C∗-dynamical system is nuclear. Then, I will give an introduction to discrete twisted dynamical systems and the associated reduced crossed product C∗-algebras. Finally, I  will address some problems concerning the nuclearity of reduced twisted crossed product C∗-algebras.