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SUMMARY:Aaron Tikuisis (University of Ottawa)
DTSTART:20211117T200000Z
DTEND:20211117T210000Z
DTSTAMP:20260420T052739Z
UID:NYC-NCG/79
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NYC-NCG/79/"
 >Nuclear dimension and Z-stability of simple C*-algebras</a>\nby Aaron Tik
 uisis (University of Ottawa) as part of Noncommutative geometry in NYC\n\n
 \nAbstract\nMuch recent work in C*-algebra theory has focused on regularit
 y properties. This is a response to examples of "irregular" simple nuclear
  C*-algebras by Villadsen (algebras with perforation in their ordered K-th
 eory)\, Rordam (algebras with both finite and infinite projections)\, and 
 Toms (algebras that cannot be distinguished by ordered K-theory and traces
 ). I will describe two regularity properties: finite nuclear dimension and
  Z-stability (aka Jiang-Su-stability). In joint work with Castillejos\, Ev
 ington\, White\, and Winter\, we showed that these properties coincide for
  simple separable nuclear unital C*-algebras\, verifying a conjecture of T
 oms and Winter. I will discuss this result and its implications.\n
LOCATION:https://researchseminars.org/talk/NYC-NCG/79/
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