Order zero approximations of nuclear C*-algebras

Classification of operator algebras: complexity, rigidity, and dynamics

03 March 14:00 - 15:00

Jose Carrion - Texas Christian University

Nuclear C*-algebras enjoy a number of approximation properties, most famously the completely positive approximation property. The CPAP was sharpened by Hirshberg, Kirchberg and White, who arranged the incoming maps to be sums of order zero maps. We discuss a further improvement where the outgoing maps can be chosen asymptotically order-zero. The approximations can be improved further under some quasidiagonal assumptions. This is joint work with Nate Brown and Stuart White.
Marius Dadarlat
Purdue University
Søren Eilers
University of Copenhagen
Asger Törnquist
University of Copenhagen


Søren Eilers


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