Some Calkin algebras have outer automorphisms
classification
🧮 math.LO
math.OA
keywords
automorphismsoutersomealgebraalgebrasboundedcalkincases
read the original abstract
We consider various quotients of the C*-algebra of bounded operators on a nonseparable Hilbert space, and prove in some cases that, consistently, there are many outer automorphisms.
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