Corrected slides. for the talk Nonisomorphic simple AH~algebras with the same Elliott invariant and radius of comparison, at the Special Week on Operator Algebras 2024, Research Center for Operator Algebras, East China Normal University, Shanghai, China,9 July--2 August 2024.
Misprints detected during the talk have been corrected.
Last significant change: 2 August 2024.