Elke Enning

Victor Wu (Sydney): From directed graphs of groups to Kirchberg algebras. Oberseminar C*-Algebren.

Tuesday, 28.05.2024 16:15 im Raum SRZ 216/217

Mathematik und Informatik

Directed graph algebras have long been studied as tractable examples of C*-algebras, but they are limited by their inability to have torsion in their K_1 group. Graphs of groups, which are famed in geometric group theory because of their intimate connection with group actions on trees, are a more recent addition to the C*-algebra scene. In this talk, I will introduce the child of these two concepts directed graphs of groups and describe how their algebras inherit the best properties of its parents, with a view to outlining how we can use these algebras to model a class of C*-algebras (stable UCT Kirchberg algebras) which is classified completely by K-theory.

Angelegt am 04.04.2024 von Elke Enning
Geändert am 30.04.2024 von Elke Enning
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