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SUMMARY:The Cuntz semigroup and structure of C*-algebras - Andrew Toms (Pu
 rdue University)
DTSTART:20250708T130000Z
DTEND:20250708T140000Z
UID:TALK234157@talks.cam.ac.uk
DESCRIPTION:We trace briefly&nbsp\;the history of the Cuntz&nbsp\;semigrou
 p as an invariant for C*-algebras\, from its beginnings as a natural carri
 er for dimension functions to its modern applications to the structure and
  classification of C*-algebras.&nbsp\; We then turn to two recent results 
 which involve the Cuntz&nbsp\;semigroup in a crucial role\, one related to
  existence of *-homomorphism in the non-nuclear setting and the other on t
 he contractibility of Cuntz&nbsp\;equivalence classes in Z-stable C*-algeb
 ras.&nbsp\; This is joint work with Hao Wan and Chrisil Ouseph.\n&nbsp\;\n
 This seminar will take place at Queen's University Belfast\, in MAPTC room
  0G.017.
LOCATION:External
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